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Effect of Spreading Bandwidth on DS-CDMA Reverse Link Capacity
Hirohito SUDA Fumiyuki ADACHI
IEICE TRANSACTIONS on Communications
Publication Date: 1999/12/25
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Mobile Communication
DS/CDMA, mobile radio, capacity, spreading bandwidth, reverse link,
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This paper addresses an important issue on the spreading bandwidth of direct sequence code division multiple access (DS-CDMA) cellular mobile radio systems: does wider spreading bandwidth provide larger capacity? And if so, to what extent? The capacity of the perfect power controlled reverse link is evaluated by computer simulation for 1.25 MHz and 5 MHz spreading bandwidths under various sets of propagation channel parameters (path loss decay factor, shadowing standard deviation, shadowing correlation, number of resolved propagation paths) and antenna diversity reception.