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CDMA with Code Assignment Control for Integrated Voice/Data Transmission

Tomohiro HARUKI, Jun-ichi NISHIMURA, Kouichi MUTSUURA, Hiromi OKADA

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Summary :

In this paper, we propose an improved CDMA/PRMA protocol named CDMA/CAC (Code Assignment Control). In the proposed protocol, each terminal can be assigned spreading code by simple control before packet transmission. We introduce the permission probability for code request. The permission probability for code request restricts the number of terminals requesting code in order to avoid the collision of request signal adaptively to traffic load. In the proposed protocol with enhanced mode, the voice terminals have priority in initial access by setting the permission probability to 1. Also in this protocol, the data terminals can transmit packets continuously if necessary. We carry out the performance evaluation of the protocols by computer simulation and confirm their validity.

Publication
IEICE TRANSACTIONS on Communications Vol.E85-B No.10 pp.2247-2254
Publication Date
2002/10/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Wireless Communication Technology

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