Multiple packet reception in wireless ad hoc networks using polynomial phase-modulating sequences

Authors:
A.G. Orozco-Lugo;M.M. Lara;D.C. McLernon;H.J. Muro-Lemus
Affiliations:
Seccion de Comunicaciones, CINVESTAV-IPN, Mexico City, Mexico;-;-;-
Venue:
IEEE Transactions on Signal Processing
Year:
2003

Citing 0
Cited 4

Bibliography on cyclostationarity

Signal Processing
Dual power multiple access with multipacket reception using local CSI

IEEE Transactions on Wireless Communications
On Supporting Weighted Service Differentiation in Multi-Packet Reception Wireless Networks: A Distributed Tree-Based Approach

Wireless Personal Communications: An International Journal
Local polynomial Fourier transform: A review on recent developments and applications

Signal Processing

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Abstract

This paper proposes a blind interference cancellation algorithm that is able to provide multiple packet reception capability for asynchronous random access wireless mobile ad hoc networks. The algorithm exploits the fact that the baseband signal exhibits cyclostationarity properties, which are induced at the transmitters by means of modulating the symbols with polynomial phase sequences. This modulation does not expand the bandwidth and can be considered as a "color code" that can be used to distinguish one transmission from the others (i.e., packets from other users). The proposed technique does not require knowledge of the starting time of transmission of the desired signal and can also be applied to time-dispersive multipath channels. In addition, a practical way of assigning the color codes via the use of a common codebook known to all nodes is proposed, and the impact on local throughput of such a scheme is analyzed. Simulation results illustrate the excellent performance of the proposed approach.