No |
220893 |
標題(和) |
Performance improvement with channel ranking and cutting the symbol candidate branchs for complexity reducing sequential decision with QRM-MLD |
標題(英) |
Performance improvement with channel ranking and cutting the symbol candidate branchs for complexity reducing sequential decision with QRM-MLD |
研究会名(和) |
信号処理, 回路とシステム, 通信方式 |
研究会名(英) |
Signal Processing, Circuits and Systems, Communication Systems |
開催年月日 |
2013-03-14 |
終了年月日 |
2013-03-15 |
会議種別コード |
5 |
共催団体名(和) |
|
資料番号 |
CAS2012-98, SIP2012-129, CS2012-104 |
抄録(和) |
|
抄録(英) |
Recently, the wireless communication technology is required to carry a large amount of digital information with spread of the mobile phone and wireless LAN.\r\nSpace Division Multiplex (SDM) system has actively studied for increasing the channel capacity. However, SDM requires a signal identifying technique at the receiver in order to identify each transmission stream. \r\nAlthough Maximum Likelihood Detection (MLD) shows the best BER performance, it requires prohibitively large amount of computation to implement at the receiver. \r\nTo mitigate the above mentioned problems, we have proposed the sequential decision algorithm for QRM-MLD in order to reduce the computation without performance deterioration. \r\nHowever, the number of computation of the proposed system is 1 by 10 as much as conventional MLD and still remained the BER degradation.\r\nThus, for improving the performance of the proposed system, we propose the branch cutting method with channel ranking. \r\nFrom the simulation results, the number of the proposed method computation is approximately an half as much as the conventional sequential decision algorithm. |
収録資料名(和) |
電子情報通信学会技術研究報告 |
収録資料の巻号 |
Vol.112, No.484,485,486 |
ページ開始 |
9 |
ページ終了 |
14 |
キーワード(和) |
|
キーワード(英) |
MIMO,QRM-MLD,OFDM |
本文の言語 |
ENG |
著者(和) |
吉村友樹 |
著者(ヨミ) |
ヨシムラ トモキ |
著者(英) |
Tomoki Yoshimura |
所属機関(和) |
千葉大学 |
所属機関(英) |
Chiba University |
著者(和) |
井田悠太 |
著者(ヨミ) |
イダ ユウタ |
著者(英) |
Yuta Ida |
所属機関(和) |
広島私立大学 |
所属機関(英) |
Hiroshima City University |
著者(和) |
安昌俊 |
著者(ヨミ) |
アン チャンジュン |
著者(英) |
Chang-Jun Ahn |
所属機関(和) |
千葉大学 |
所属機関(英) |
Chiba University |
著者(和) |
大森達也 |
著者(ヨミ) |
オオモリ タツヤ |
著者(英) |
Tatsuya Omori |
所属機関(和) |
千葉大学 |
所属機関(英) |
Chiba University |
著者(和) |
橋本研也 |
著者(ヨミ) |
ハシモト ケンヤ |
著者(英) |
Ken-ya Hashimoto |
所属機関(和) |
千葉大学 |
所属機関(英) |
Chiba University |