TTCM 论文

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【文件名】:06913@52RD_TTCM1.rar
【格　式】:rar
【大　小】:68K
【简　介】:Abstract—In this paper, bandwidth ef£cient Type-I and Type-II hybrid-ARQ (HARQ) schemes using turbo trellis coded modulation (TTCM) are
proposed. These schemes combine the power ef£ciency of turbo codes with
the bandwidth ef£ciency of trellis coded modulation (TCM) to create an
effective hybrid FEC/ARQ system. Several packet combining schemes are
presented for use in conjunction with iterative turbo decoding over wireless
time-varying Rayleigh fading channels. The packet combining schemes
provide improved throughput and reliability compared to a standard Type-
I hybrid-ARQ system without combining with only a small increase in
transmitter and receiver complexity. Simulation results show that, for high
throughput values, HARQ schemes based on TTCM give substantial improvement over conventional TCM schemes with the same throughput over
wireless channels.
【目　录】:
I. INTRODUCTION
II. SYSTEM DESCRIPTION
III. PERFORMANCE EVALUATION
IV. NUMERICAL RESULTS
V. CONCLUSIONS