PAPR reduction of TDD-CDMA using joint transmission technique

Norharyati Binti Harum, Tomoaki Ohtsuki, Masao Nakagawa

研究成果: Article査読


Joint transmission (JT) in time-division-duplex codedivision multiple-access (TDD-CDMA) systems can provide a low peakto- average power ratio (PAPR) for single paths, but causing a high PAPR in multipath environments. To avoid the high PAPR, we propose a new approach to JT technique by selecting certain paths instead of all paths used in JT processing so that PAPR becomes lower. The path selection proposal involves two methods; path selection by taking certain paths from all paths and by taking paths having path gains above a certain threshold value. To enhance the effectiveness of the proposed techniques, we evaluate a combination of the proposed technique with the clipping technique. We evaluate both PAPR and bit error rate (BER) performance for the proposed techniques and its combination with the clipping technique. We compare the results of the proposed techniques with conventional JT technique and the combination techniques with clipping technique. From the results of computer simulation, we show that the proposed path selection techniques perform low PAPR and good BER performance compared to the conventional JT processing. We also show that the combination of proposed path selection technique and clipping performs low PAPR performance without severe BER degradation compared to the conventional clipping technique.

ジャーナルIEICE Transactions on Communications
出版ステータスPublished - 2012 3月

ASJC Scopus subject areas

  • ソフトウェア
  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学


「PAPR reduction of TDD-CDMA using joint transmission technique」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。