On the Coexistence of DS-UWB Systems with Wi-Max/IEEE-802.16 Based Systems

Khodayar SARFARAZ
Seyed Ali GHORASHI
Mohammad GHAVAMI
Hamid AGHVAMI

Publication
IEICE TRANSACTIONS on Communications   Vol.E90-B    No.2    pp.251-259
Publication Date: 2007/02/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.2.251
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
coexistence,  DS-UWB,  Wi-MAX,  IEEE 802.16,  

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Summary: 
In this paper the coexistence issue between the DS-UWB systems and Wi-Max/IEEE-802.16 based Fixed Broadband Wireless Access (FBWA) systems has been investigated. The aim is to evaluate the impact that the interference resulting from a realistic UWB hot spot scenario may have on the performance of a FBWA receiver. A mathematical model is developed through which the interference power produced by the UWB hot spot can be calculated. The benchmarks against which the UWB interference is assessed are also developed using the specifications of Wi-Max/IEEE-802.16 systems. Several simulations have been done to both validate the analytical results and calculate the UWB interference. In doing so, the effects of parameters like victim receiver bandwidth, carrier frequency, activity factor, the number of users and the distance from victim receiver in a realistic hot spot scenario have been studied.