1. Proposed Text for E-MBS Supporting Multi-resolution Transmissions with MIMO Scheme
IEEE Presentation Submission Template (Rev. 9)
Document Number:
IEEE S802.16m-09/1762r1
Date Submitted:
Source:
Ren-Jr Chen, Chung-Lien Ho, Yan-Xiu Zheng
Yu-Chuan Fang, Chang-Lan Tsai, His-Min Hsiao
ITRI
Venue:
IEEE Interim, Session #63, Jeju Island, Korea
P802.16m/D1 EMBS; in response to the TGm Call for Contributions and Comments m-09/0037 for Session 63
Base Contribution:
IEEE C802.16m-09/1762r1
Purpose:
To be discussed and adopted by IEEE TGm for P802.16m/D1
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2. E-MBS with MIMO (1) Block diagram of E-MBS with MIMO
In E-MBS, MSs have different SNR and have different number of antenna
How can we transmit one signal that can provide different capability for all MS with different scenario
Source
coding
Basic
Information
Enhanced
Channel
Coding
Modulation
and
MIMO
Scheme
Multi-media
data
Interleaver

3. E-MBS with MIMO (2) In MBMS
All MSs receive the same signal
All MSs have different SNR and have different number of antenna
BSs would like to transmit a robust signal for large coverage support
BSs also would like to transmit a spectral efficient signal for high data-rate demand.
How can we transmit one signal that can provide different capability for all MS with different scenario (different SNR, different No. antenna)

4. E-MBS with MIMO (3)
A MIMO scheme that can provide multi-resolution transmission in E-MBS
Source
coding
Basic
Information
Enhanced
Channel
Coding
Proposed
Modulation
and
MIMO
Scheme
Multi-media
data
Interleaver

5. E-MBS with MIMO (4)
Proposed modulation scheme
k = 4m

6. E-MBS with MIMO (5) Proposed MIMO scheme Transmit signal
Receive signal
Compare with Alamouti scheme

7. E-MBS with MIMO (6) MS with two received antennas MS condition
switch
UE condition
TxD
demapper SM
Channel code
decoding
MS condition
Low SINR
High SINR
1 Rx Antenna
TxD
2 Rx Antennas SM
TxD scheme: to decode the basic information
SM scheme: to decode the basic and the enhanced information

8. E-MBS with MIMO (7) TxD demapper
Use SISO demapper to retrieve soft-value
Channel code
decoding
Combine

9. E-MBS with MIMO (8) SM demapper Use MIMO demapper
to retrieve soft-value
Combine
Channel code
decoding

10. E-MBS with MIMO (9) MS with one received antenna (TxD demapper)
Use SISO demapper
to retrieve soft-value
Channel code
decoding

11. Simulation (1) Simulation setting: Two transmit antennas
Coding parameters
Codeword with length 1024 bits
1/3 code-rate, turbo code, maxlogmap, 8 iterations
Channel parameters
Fast fading
In SM
Receiver with two antennas, one codeword is transmitted
In TxD scheme
Receiver with one or two antennas, one codeword is transmitted
In ITRI’s MIMO and modulation scheme
Receiver with one or two antennas, two codeword is transmitted.

12. Simulation (2) —□— QPSK, 2 Ant, TxD,
—*— MS, 2 Ant, low SINR, TxD, basic information
—*— MS, 2 Ant, high SINR, SM, basic information
—*— MS, 2 Ant, high SINR (> 13dB), SM, enhanced information
- -□- - QPSK, 1 Ant, TxD,
- -* MS, 1 Ant, TxD, basic information

13. Conclusions Advantage
Provide a capability to suit for MSs with different conditions, SNR and number of antenna.