Spread spectrum communications handbook (revised ed.)
Spread spectrum communications handbook (revised ed.)
Frequency-Hopping Pilot Patterns for OFDM Cellular Systems
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Space-frequency coding reduces the collision rate in FH-OFDMA
IEEE Transactions on Wireless Communications
IEEE Journal on Selected Areas in Communications
Residue number system arithmetic inspired hopping pilot pattern design for cellular downlink OFDMA
WTS'10 Proceedings of the 9th conference on Wireless telecommunications symposium
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We propose an RNS arithmetic-based FH pattern design approach that is well suited and easy to implement for practical OFDMA systems. The proposed FH scheme guarantees orthogonality among intracell users while randomizing the intercell interferences and providing frequency diversity gains. We present detailed construction procedures and performance analysis for both independent and cluster hopping scenarios. Using simulation results, we demonstrate the gains due to frequency diversity and intercell interference diversity on the system bit error rate (BER) performance. Furthermore, the BER performance gain is consistent across all cells unlike other FH pattern design schemes such as the Latin squares (LSs-)-based FH pattern design where wide performance variations are observed across cells.