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Downlink Multihop Transmission Technique for Asymmetric Traffic Accommodation in DS-CDMA/FDD Cellular Communications

Kazuo MORI, Katsuhiro NAITO, Hideo KOBAYASHI

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Summary :

This paper proposes an asymmetric traffic accommodation scheme using a multihop transmission technique for CDMA/FDD cellular communication systems. The proposed scheme exploits the multihop transmission to downlink packet transmissions, which require the large transmission power at their single-hop transmissions, in order to increase the downlink capacity. In these multihop transmissions, vacant uplink band is used for the transmissions from relay stations to destination mobile stations, and this leads more capacity enhancement in the downlink communications. The relay route selection method and power control method for the multihop transmissions are also investigated in the proposed scheme. The proposed scheme is evaluated by computer simulation and the results show that the proposed scheme can achieve better system performance.

Publication
IEICE TRANSACTIONS on Communications Vol.E91-B No.10 pp.3122-3131
Publication Date
2008/10/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.10.3122
Type of Manuscript
Special Section PAPER (Special Section on Next-Generation Mobile Multimedia Communications)
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