Evaluation of Cell Coverage and System Throughput in Multihop DS-CDMA Cellular Network

Atsushi FUJIWARA  Shinji TAKEDA  Hitoshi YOSHINO  Narumi UMEDA  

IEICE TRANSACTIONS on Communications   Vol.E88-B    No.9    pp.3541-3545
Publication Date: 2005/09/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.9.3541
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Advances in Ad Hoc Mobile Communications and Networking)
cellular system,  DS-CDMA,  multihop,  interference margin,  system capacity,  area coverage,  

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A multihop connection scheme, where one or more mobile terminals relay transmission signals using the same access scheme between an end user terminal and its destination base station, is a promising approach to overcome reduction in cell size caused by high bit-rate data transmission. In a general radio communication system, the coverage area and system throughput are closely interrelated. In this paper, the performance of a multihop cellular network employing a CDMA access scheme, which is a promising candidate for beyond the third generation, is studied in terms of the coverage area and system throughput by conducting a link level simulation. The results show that a multihop connection expands the coverage area, especially in the case of light traffic, and also has an advantage in system throughput.