October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 1
doc.: IEEE 802.11-04/1212r0
Submission
Performance of Circulation Transmission (Sub_BC) in 20MHz and 40MHz
MIMO Systems
Jeng-Hong Chen ([email protected])
Pansop Kim ([email protected])
Winbond Wireless Design Center
Torrance, CA, USA
October 2004
(Other documents: IEEE 04/934r2, 04/1026r0, 04/1105/r0, 04/1163r1)
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 2
doc.: IEEE 802.11-04/1212r0
Submission
Generalized Sub-Carrier Based Circulation (Sub_BC)
9N s,subcarrier data 108 with systems MIMO 40MHzFor
3N s,subcarrier data 48with systems MIMO 20MHzFor
System MIMO (M)N afor N
MN
.indexcarrier -sub theis where
,Nmod )]N mod ()N/(floor[)(Pattern
row
row
OFDMOFDM
Pattern
Patternrowrow
s
sss
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 3
doc.: IEEE 802.11-04/1212r0
Submission
Summary I: Alamouti or SMX v.s. CSMX (Sub_BC)• Sub_BC outperforms Alamouti (Rate=1) in PER• Sub_BC without one OFDM symbol decoding (STBC) delay• The transmit diversity gain (up to 8dB at 10% PER or more at 1%
PER in channel B) from CSMX over SMX will– reduce the required high EVM at TX– reduce the required high SNR at RX
• Sub_BC can be implemented to 2xN Alamouti (Rate=1)– For example: 2xN ALA v.s. 2(M)xN CALA in 04/934r2.
• Rate 4(M)xN, M>4 can be implemented to relax the required SNR to support high data rates with four spatial streams if necessary.
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 4
doc.: IEEE 802.11-04/1212r0
Submission
Summary II: Sub_BC v.s. Beamforming (BF)
• Do not require feedback of CSI from RX to TX• Do not require that the channel is reciprocal • All MAC/PHY feedback modes required for BF in
IEEE-04/889r0 can be eliminated. • Simpler MAC without feedback modes greatly improves
the MAC efficiency (i.e., throughput) and complexity.
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 5
doc.: IEEE 802.11-04/1212r0
Submission
Simulation Results• Part I: 20MHz, 48 data subcarriers, 3D Interleaver
– I.1.1: Alamouti v.s. 1(M) CSMX, channel B– I.1.2: Alamouti v.s. 1(M) CSMX, channel E– I.2.1: SMX v.s. CSMX, channel B– I.2.2: SMX v.s. CSMX, channel E
• Part II: 40MHz, 108 data subcarriers, 3D-A Interleaver– II.1.1: Alamouti v.s. 1(M) CSMX, channel B– II.1.2: Alamouti v.s. 1(M) CSMX, channel E– II.2.1: SMX v.s. CSMX, channel B– II.2.2: SMX v.s. CSMX, channel E
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 6
doc.: IEEE 802.11-04/1212r0
Submission
Part I.1.1: Alamouti vs. 1(M) CSMX, channel B
•2x2 Alamouti vs. 1(M)x2 CSMX•2x3 Alamouti vs. 1(M)x3 CSMX•2x4 Alamouti vs. 1(M)x4 CSMX
•20MHz, 3D interleaver
RX Ant. Rate=1 Rate=1 TX Ant. RX Ant. Circulation
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 7
doc.: IEEE 802.11-04/1212r0
Submission
2x2 Alamouti vs. 1(M)x2 CSMXChannel B, half lambda, 3D, 20 MHz
0.01
0.1
1
-5 0 5 10 15 20 25
SNR (dB)
PE
R2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX
6 Mbps 24 Mbps 48 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 8
doc.: IEEE 802.11-04/1212r0
Submission
2x3 Alamouti vs. 1(M)x3 CSMX
•1(M) Circulation is easyto implement
•PER performance of 1(M)xN Circulation is better than 2xN ALA.
Channel B, half lambda, 3D, 20 MHz
0.01
0.1
1
-5 0 5 10 15 20 25
SNR (dB)
PE
R
2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX
6 Mbps 24 Mbps 48 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 9
doc.: IEEE 802.11-04/1212r0
Submission
2x4 Alamouti vs. 1(M)x4 CSMXChannel B, half lambda, 3D, 20 MHz
0.01
0.1
1
-5 0 5 10 15 20
SNR (dB)
PE
R2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX
6 Mbps 24 Mbps 48 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 10
doc.: IEEE 802.11-04/1212r0
Submission
Part I.1.2: Alamouti vs. 1(M) CSMX, channel E
•2x2 Alamouti vs. 1(M)x2 CSMX•2x3 Alamouti vs. 1(M)x3 CSMX•2x4 Alamouti vs. 1(M)x4 CSMX
•20MHz, 3D interleaver
RX Ant. Rate=1 Rate=1 TX Ant. RX Ant. Circulation
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 11
doc.: IEEE 802.11-04/1212r0
Submission
2x2 Alamouti vs. 1(M)x2 CSMX
Channel E, half lambda, 3D, 20 MHz
0.01
0.1
1
-5 0 5 10 15 20 25
SNR (dB)
PE
R
2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX
6 Mbps 24 Mbps 48 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 12
doc.: IEEE 802.11-04/1212r0
Submission
2x3 Alamouti vs. 1(M)x3 CSMXChannel E, half lambda, 3D, 20 MHz
0.01
0.1
1
-5 0 5 10 15 20 25
SNR (dB)
PE
R2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX
6 Mbps 24 Mbps 48 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 13
doc.: IEEE 802.11-04/1212r0
Submission
2x4 Alamouti vs. 1(M)x4 CSMX
Channel E, half lambda, 3D, 20 MHz
0.01
0.1
1
-5 0 5 10 15 20
SNR (dB)
PE
R
2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX
6 Mbps 24 Mbps 48 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 14
doc.: IEEE 802.11-04/1212r0
Submission
Part I.2.1: SMX vs. CSMX, channel B
•2x2 SMX vs. 2(3)x2, 2(4)x2 CSMX•2x3 SMX vs. 2(3)x3, 2(4)x3 CSMX•2x4 SMX vs. 2(3)x4, 2(4)x4 CSMX•3x3 SMX vs. 3(4)x3 CSMX•3x4 SMX vs. 3(4)x4 CSMX
•20MHz, 3D interleaver
RX Ant. Rate TX Ant. RX Ant. Circulation
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 15
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X2 CSMXChannel B, half lambda, 3D, 20 MHz
0.01
0.1
1
15 20 25 30 35 40 45
SNR (dB)
PE
R2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX
48 Mbps 96 Mbps 126 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 16
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X3 CSMX
Channel B, half lambda, 3D, 20 MHz
0.01
0.1
1
10 15 20 25 30 35 40
SNR (dB)
PE
R2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX
48 Mbps 96 Mbps 126 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 17
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X4 CSMX
Channel B, half lambda, 3D, 20 MHz
0.01
0.1
1
10 15 20 25 30 35 40
SNR (dB)
PE
R
2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX
48 Mbps 96 Mbps 126 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 18
doc.: IEEE 802.11-04/1212r0
Submission
3(M)X3 CSMXChannel B, half lambda, 3D, 20 MHz
0.01
0.1
1
20 25 30 35 40 45 50
SNR (dB)
PE
R3(3)X3 CSMX3(4)X3 CSMX3(3)X3 CSMX3(4)X3 CSMX3(3)X3 CSMX3(4)X3 CSMX72 Mbps 144 Mbps 189 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 19
doc.: IEEE 802.11-04/1212r0
Submission
3(M)X4 CSMXChannel B, half lambda, 3D, 20 MHz
0.01
0.1
1
15 20 25 30 35 40 45 50
SNR (dB)
PE
R3(3)X3 CSMX3(4)X3 CSMX3(3)X3 CSMX3(4)X3 CSMX3(3)X3 CSMX3(4)X3 CSMX72 Mbps 144 Mbps 189 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 20
doc.: IEEE 802.11-04/1212r0
Submission
Part I.2.2: SMX vs. CSMX, channel E
•2x2 SMX vs. 2(3)x2, 2(4)x2 CSMX•2x3 SMX vs. 2(3)x3, 2(4)x3 CSMX•2x4 SMX vs. 2(3)x4, 2(4)x4 CSMX•3x3 SMX vs. 3(4)x3 CSMX•3x4 SMX vs. 3(4)x4 CSMX
•20MHz, 3D interleaver
RX Ant. Rate TX Ant. RX Ant. Circulation
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 21
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X2 CSMXChannel E, half lambda, 3D, 20 MHz
0.01
0.1
1
15 20 25 30 35 40 45
SNR (dB)
PE
R2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX
48 Mbps 96 Mbps 126 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 22
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X3 CSMXChannel E, half lambda, 3D, 20 MHz
0.01
0.1
1
10 15 20 25 30
SNR (dB)
PE
R
2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX
48 Mbps 96 Mbps 126 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 23
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X4 CSMXChannel E, half lambda, 3D, 20 MHz
0.01
0.1
1
10 15 20 25 30
SNR (dB)
PE
R2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX
48 Mbps 96 Mbps 126 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 24
doc.: IEEE 802.11-04/1212r0
Submission
3(M)X3 CSMXChannel E, half lambda, 3D, 20 MHz
0.01
0.1
1
10 15 20 25 30
SNR (dB)
PE
R2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX
48 Mbps 96 Mbps 126 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 25
doc.: IEEE 802.11-04/1212r0
Submission
3(M)X4 CSMXChannel E, half lambda, 3D, 20 MHz
0.01
0.1
1
10 15 20 25 30
SNR (dB)
PE
R2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX
48 Mbps 96 Mbps 126 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 26
doc.: IEEE 802.11-04/1212r0
Submission
Part II.1.1: Alamouti vs. 1(M) CSMX, channel B
•2x2 Alamouti vs. 1(M)x2 CSMX•2x3 Alamouti vs. 1(M)x3 CSMX•2x4 Alamouti vs. 1(M)x4 CSMX
•40MHz, 3D-A interleaver
RX Ant. Rate=1 Rate=1 TX Ant. RX Ant. Circulation
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 27
doc.: IEEE 802.11-04/1212r0
Submission
2x2 Alamouti vs. 1(M)x2 CSMXChannel B, half lambda, 3D-A, 40 MHz
0.01
0.1
1
-5 0 5 10 15 20 25
SNR (dB)
PE
R2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX
13.5 Mbps 54 Mbps 108 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 28
doc.: IEEE 802.11-04/1212r0
Submission
2x3 Alamouti vs. 1(M)x3 CSMXChannel B, half lambda, 3D-A, 40 MHz
0.01
0.1
1
-5 0 5 10 15 20 25
SNR (dB)
PE
R
2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX
13.5 Mbps 58 Mbps 108 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 29
doc.: IEEE 802.11-04/1212r0
Submission
2x4 Alamouti vs. 1(M)x4 CSMXChannel B, half lambda, 3D-A, 40 MHz
0.01
0.1
1
-5 0 5 10 15 20 25
SNR (dB)
PE
R
2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX
13.5 Mbps 58 Mbps 108 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 30
doc.: IEEE 802.11-04/1212r0
Submission
Part II.1.2: Alamouti vs. 1(M) CSMX, channel E
•2x2 Alamouti vs. 1(M)x2 CSMX•2x3 Alamouti vs. 1(M)x3 CSMX•2x4 Alamouti vs. 1(M)x4 CSMX
•40MHz, 3D-A interleaver
RX Ant. Rate=1 Rate=1 TX Ant. RX Ant. Circulation
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 31
doc.: IEEE 802.11-04/1212r0
Submission
2x2 Alamouti vs. 1(M)x2 CSMX
Channel E, half lambda, 3D-A, 40 MHz
0.01
0.1
1
-5 0 5 10 15 20 25
SNR (dB)
PE
R
2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX2X2 ALA1(2)X2 CSMX1(3)X2 CSMX1(4)X2 CSMX
13.5 Mbps 54 Mbps 108 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 32
doc.: IEEE 802.11-04/1212r0
Submission
2x3 Alamouti vs. 1(M)x3 CSMX
Channel E, half lambda, 3D-A, 40 MHz
0.01
0.1
1
-5 0 5 10 15 20 25
SNR (dB)
PE
R
2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX2X3 ALA1(2)X3 CSMX1(3)X3 CSMX1(4)X3 CSMX
13.5 Mbps 58 Mbps 108 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 33
doc.: IEEE 802.11-04/1212r0
Submission
2x4 Alamouti vs. 1(M)x4 CSMXChannel E, half lambda, 3D-A, 40 MHz
0.01
0.1
1
-10 -5 0 5 10 15
SNR (dB)
PE
R
2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX2X4 ALA1(2)X4 CSMX1(3)X4 CSMX1(4)X4 CSMX
13.5 Mbps 58 Mbps 108 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 34
doc.: IEEE 802.11-04/1212r0
Submission
Part II.2.1: SMX vs. CSMX, channel B
•2x2 SMX vs. 2(3)x2, 2(4)x2 CSMX•2x3 SMX vs. 2(3)x3, 2(4)x3 CSMX•2x4 SMX vs. 2(3)x4, 2(4)x4 CSMX•3x3 SMX vs. 3(4)x3 CSMX•3x4 SMX vs. 3(4)x4 CSMX
•40MHz, 3D-A interleaver
RX Ant. Rate TX Ant. RX Ant. Circulation
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 35
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X2 CSMX
Channel B, half lambda, 3D-A, 40 MHz
0.01
0.1
1
15 20 25 30 35 40 45
SNR (dB)
PE
R
2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX
108 Mbps 216 Mbps 283.5 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 36
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X3 CSMXChannel B, half lambda, 3D-A, 40 MHz
0.01
0.1
1
10 15 20 25 30 35 40
SNR (dB)
PE
R2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX
108 Mbps 216 Mbps 283.5 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 37
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X4 CSMX
Channel B, half lambda, 3D-A, 40 MHz
0.01
0.1
1
10 15 20 25 30 35
SNR (dB)
PE
R
2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX
108 Mbps 216 Mbps 283.5 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 38
doc.: IEEE 802.11-04/1212r0
Submission
3(M)X3 CSMXChannel B, half lambda, 3D-A, 40 MHz
0.01
0.1
1
20 25 30 35 40 45 50
SNR (dB)
PE
R3(3)X3 CSMX3(4)X3 CSMX3(3)X3 CSMX3(4)X3 CSMX3(3)X3 CSMX3(4)X3 CSMX162 Mbps 324 Mbps 425.25 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 39
doc.: IEEE 802.11-04/1212r0
Submission
3(M)X4 CSMXChannel B, half lambda, 3D-A, 40 MHz
0.01
0.1
1
15 20 25 30 35 40 45
SNR (dB)
PE
R3(3)X4 CSMX3(4)X4 CSMX3(3)X4 CSMX3(4)X4 CSMX3(3)X4 CSMX3(4)X4 CSMX162 Mbps 324 Mbps 425.25 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 40
doc.: IEEE 802.11-04/1212r0
Submission
Part II.2.2: SMX vs. CSMX, channel E
•2x2 SMX vs. 2(3)x2, 2(4)x2 CSMX•2x3 SMX vs. 2(3)x3, 2(4)x3 CSMX•2x4 SMX vs. 2(3)x4, 2(4)x4 CSMX•3x3 SMX vs. 3(4)x3 CSMX•3x4 SMX vs. 3(4)x4 CSMX
•40MHz, 3D-A interleaver
RX Ant. Rate TX Ant. RX Ant. Circulation
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 41
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X2 CSMXChannel E, half lambda, 3D-A, 40 MHz
0.01
0.1
1
15 20 25 30 35 40
SNR (dB)
PE
R2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX2(2)X2 CSMX2(3)X2 CSMX2(4)X2 CSMX
108 Mbps 216 Mbps 283.5 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 42
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X3 CSMXChannel E, half lambda, 3D-A, 40 MHz
0.01
0.1
1
10 15 20 25 30
SNR (dB)
PE
R2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX2(2)X3 CSMX2(3)X3 CSMX2(4)X3 CSMX
108 Mbps 216 Mbps 283.5 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 43
doc.: IEEE 802.11-04/1212r0
Submission
2(M)X4 CSMX
Channel E, half lambda, 3D-A, 40 MHz
0.01
0.1
1
5 10 15 20 25 30
SNR (dB)
PE
R
2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX2(2)X4 CSMX2(3)X4 CSMX2(4)X4 CSMX
108 Mbps 216 Mbps 283.5 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 44
doc.: IEEE 802.11-04/1212r0
Submission
3(M)X3 CSMXChannel E, half lambda, 3D-A, 40 MHz
0.01
0.1
1
15 20 25 30 35 40 45
SNR (dB)
PE
R3(3)X3 CSMX3(4)X3 CSMX3(3)X3 CSMX3(4)X3 CSMX3(3)X3 CSMX3(4)X3 CSMX162 Mbps 324
Mbps425.25 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 45
doc.: IEEE 802.11-04/1212r0
Submission
3(M)X4 CSMXChannel E, half lambda, 3D-A, 40 MHz
0.01
0.1
1
10 15 20 25 30 35
SNR (dB)
PE
R3(3)X4 CSMX3(4)X4 CSMX3(3)X4 CSMX3(4)X4 CSMX3(3)X4 CSMX3(4)X4 CSMX162 Mbps 324 Mbps 425.25 Mbps
October
Jeng-Hong Chen, Pansop Kim, Winbond Electronics
Slide 46
doc.: IEEE 802.11-04/1212r0
Submission
Thank you!!
The dream of 11n greedy data rates comes at extreme cost of required SNR (EVM) if challenged in the real MIMO channels. The proposed circulation transmission explores optimal antenna diversities without feedback, relax the required SNR, and make the speedy dream come true.