Access count of this item: 86

Files in This Item:
File Description SizeFormat 
110003213093.pdf639.09 kBAdobe PDFView/Open
Title: Analysis of reverse link capacity enhancement for CDMA cellular systems using two-hop relaying
Authors: YAMAMOTO Koji  kyouindb  KAKEN_id
Keywords: two-hop relaying
multihop cellular systems
CDMA cellular systems
capacity enhancement
Issue Date: Jul-2004
Publisher: Institute of Electronics, Information and Communication Engineers(IEICE)
Journal title: IEICE Transactions on fundamentals of electronics, communications and computer sciences
Volume: E87-A
Issue: 7
Start page: 1712
End page: 1719
Abstract: A routing algorithm, utilizing two-hop relaying when necessary, is proposed to enhance the system capacity of code division multiple access (CDMA) cellular systems. Up to now, multihop relaying is applied to cellular systems mainly with the aim of decreasing the transmit power of each mobile station or extending the cell coverage area. Here, in this paper, potential benefit of multihop relaying is studied so as to increase the system capacity. A condition for the interference to be reduced by changing single-hop connections to two-hop connections is analyzed. In addition, a new route selection criterion maximizing the amount of interference reduction is proposed. Simulation results reveal that the proposed criterion is superior to the conventional criterion minimizing the total transmit power in respect of the amount of interference reduction. By using this criterion, an efficient routing algorithm for two-hop CDMA cellular systems is proposed to enhance the system capacity. Simulation results also indicate that by using the proposed routing algorithm in combination with a call admission control, the system capacity is increased even under heavy traffic conditions.
Rights: © 2004 The Institute of Electronics, Information and Communication Engineers
Appears in Collections:Journal Articles

Show full item record

Export to RefWorks

Export Format: 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.