1. Panasonic Partial Proposal Summary for TGn
November 2004
doc.: IEEE /1447r0
November 2004
Panasonic Partial Proposal Summary for TGn
Refer to 907r2, 908r1 and 956r2
Kiyotaka Kobayashi, Isaac Lim Wei Lih,
Naganori Shirakata and Takashi Fukagawa
Panasonic
Takashi Fukagawa, Panasonic
Takashi Fukagawa, Panasonic

2. Simple and Significant Enhancement
November 2004
[PHY]
VIP(Varying Interleave Pattern)-MIMO
Different interleaver on each streams
When combined with iterative decoding, VIP-MIMO reduces the burst error effects introduced during Viterbi decoding
possible to implement VIP in single or paraller encoder/interleaver
VIP receiver implementation is vendor dependent
- enhanced architectures can realize higher gains but not mandatory
Scattered & Staggered Pilots
Simple implementation to facilitate MIMO channel tracking
- Pilot positions are scattered in every OFDM symbol
- Robustness in a frequency selective fading environment
- Pilot insertion is staggered in OFDM symbols from different transmit branches
- Enables per-tone channel error estimation on each path
[MAC]
MAC Aggregation
MSDUs belongings to the same AC/TSID can be aggregated to form a larger PSDU in order to achieve higher MAC throughput efficiency
Support multiple receivers aggregation to achieve higher throughput efficiency
A new frame type and subtype is use to identify aggregated data frame.
Only modular changes are introduced to existing MAC implementation
IFS Reduction
Introduce a shorter version of IFS with the use of PHY signaling
Increase throughput efficiency when aggregation is NOT possible
Simple and Significant Enhancement
Takashi Fukagawa, Panasonic