Initial ranging for WiMAX (802.16e) OFDMA

Authors:
Hisham A. Mahmoud;Huseyin Arslan;Mehmet Kemal Ozdemir
Affiliations:
Electrical Engineering Dept., Univ. of South Florida, Tampa, FL;Electrical Engineering Dept., Univ. of South Florida, Tampa, FL;Logus Broadband Wireless Solutions, Tampa, FL
Venue:
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Year:
2006

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Abstract

Ranging is one of the most important processes in the new mobile WiMAX standard. Power adjustment, timing offset estimation, and synchronization between a Base Station (BS) and all users within a cell are done through the ranging process known as initial ranging. In this paper we discuss the details of initial ranging and some of the proposed algorithms as well as a novel algorithm to carry out a successful ranging process. Performance curves and computational complexity comparisons will be presented. It is observed that the proposed algorithm offers a better trade-off between computational complexity and performance.