Design of BS transceiver for IEEE 802.16E OFDMA mode

Abstract

Wordwide Interoperability for Microwave Access (WiMAX), or the IEEE 802.16d/e standard, is a technology for broadband wireless access (BWA) with significant market potential. In this paper, we propose a base station (BS) physical layer (PHY) transceiver solution for WiMAX orthogonal-frequency division-multiplexing access (OFDMA) mode. Our aim is to provide a single chip solution for baseband processing of WiMAX PHY. The data throughput should achieve 20Mbps both for uplink and downlink. The solution is implemented on Cell Broadband Engine, which is a multicore processor jointly developed by IBM, SONY and Toshiba for high performance computing(HPC). Algorithms for symbol timing offset, carrier frequency offset, channel estimation and Space-Frequency Block Code (SFBC) are embedded in this transceiver. Simulation and real test on Cell show that the proposed solution can fulfill the bit-error-rate (BER) requirements under most situations. ©2008 IEEE.