Throughput of RCPT hybrid ARQ for DS-CDMA with diversity reception and rake combining

Deepshikha Garg, Fumiyuki Adachi

研究成果: Conference article査読

7 被引用数 (Scopus)

抄録

In this paper, we evaluate by computer simulations the throughput performance of rate compatible punctured turbo coded hybrid ARQ (RCPT HARQ) for direct sequence code division multiple access (DS-CDMA) with antenna diversity reception and rake combining in a frequency selective Raylelgh fading channel. The impact of a range of transmission system parameters and propagation parameters (viz.: the information sequence length, puncturing rate, spreading factor, number of diversity antennas, fading rate, and the power delay profile of the multipath channel) on the throughput is Investigated. It is found that RCPT HARQ system has the highest throughput when minimum amount of redundancy bits is transmitted with each retransmission. In addition, the evaluations show that over a frequency selective fading channel, the throughput is almost Insensitive to the information sequence length and the fading rate. It is also found that smaller spreading factor (SF) for a given chip rate gives a higher throughput in bps/Hz. Furthermore In the multi-user case, when the number of users is equal to SF, the total throughput for downlink is higher than that for uplink and is more or less independent of SF.

本文言語English
ページ(範囲)2730-2734
ページ数5
ジャーナルIEEE Vehicular Technology Conference
57
4
出版ステータスPublished - 2003 9 1
イベント57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of
継続期間: 2003 4 222003 4 25

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 電子工学および電気工学
  • 応用数学

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