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Threshold Controlling Scheme for Adaptive Modulation and Coding System
Daisuke TAKEDA Yuk C CHOW Paul STRAUCH Hiroshi TSURUMI
Publication
IEICE TRANSACTIONS on Communications
Vol.E89-B
No.5
pp.1598-1604 Publication Date: 2006/05/01 Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.5.1598 Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Wireless Communication Technologies Keyword: adaptive modulation and coding, SIR, CRC, transmission power control,
Full Text: PDF(870KB)>>
Summary:
Adaptive modulation and coding scheme (AMC) is an effective way to achieve high data rate communication. In AMC system, the key issue is to determine the rule for switching among different Modulation and Coding Schemes (MCSs). In this paper, adaptive threshold controlling scheme for AMC is proposed. The proposed scheme controls switching thresholds according to target block error rate. Simulation results have shown that the throughput performance of the proposed scheme is very close to the performance, which obtained by the optimum SIR thresholds. We also proposed downlink transmission power control (TPC) scheme suitable for AMC. The throughput of the lowest MCS is improved and the tranmission power of the highest MCS can be reduced with the proposed algorithm.
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