Residue number system arithmetic inspired hopping pilot pattern design for cellular downlink OFDMA

Authors:
Dalin Zhu;Balasubramaniam Natarajan
Affiliations:
NEC Laboratories China, Beijing, China;Department of Electrical & Computer Engineering, Kansas State University, Manhattan, KS
Venue:
WTS'10 Proceedings of the 9th conference on Wireless telecommunications symposium
Year:
2010

Citing 3
Cited 0

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Abstract

In this paper, a novel hopping pilot pattern design method is proposed for downlink multi-cell OFDMA. Specifically, residue number system (RNS) arithmetic is invoked as a tool for constructing pilot patterns with equidistant sampling in both time and frequency domains, and limited mutual interference. Compared to Costas array-based pilot patterns, RNS-based method generates more unique pilot patterns, providing additional degrees of freedom for identifying cells/devices in a multi-cell multi-antenna environment.