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dc.contributor.authorYang, Jie
dc.contributor.authorKwon, Hyuck M.
dc.contributor.authorMukherjee, Amitav
dc.contributor.authorPham, Khanh D.
dc.identifier.citationJ. Yang, H. M. Kwon, A. Mukherjee and K. D. Pham, "Spreading-Sequence Design for Partially Connected Multirelay Networks Under Multipath Fading," in IEEE Transactions on Vehicular Technology, vol. 65, no. 3, pp. 1420-1433, March 2016en_US
dc.descriptionClick on the DOI link to access the article (may not be free).en_US
dc.description.abstractMultipath fading can degrade the performance of a wireless communication system significantly when the data rate is as high as those systems beyond Long-Term Evolution Advanced (LTE-A). To combat the multipath-fading effects, orthogonal frequency-division multiplexing (OFDM) techniques have been extensively studied and used in existing systems. However, another effective method to combat multipath fading is a code-division multiple access (CDMA) scheme, which has not been extensively investigated for relay network communication systems. This paper considers uplink CDMA relay networks (consisting of multiple sources, multiple relays, and a single destination) and downlinks (consisting of a combined source, multiple relays, and multiple destinations) under multipath fading. The objective of this paper is to propose a unique, simple, and effective method of finding optimum nonbinary pseudo noise (PN) spreading and despreading sequences employing a maximum signal-to-interference-plus-noise ratio (SINR) criterion and channel state information (CSI). This paper also examines the sensitivity of the proposed schemes to 1-bit quantization, mistiming alignment, wideband jamming, and imperfect CSI. Simulation results verify that the proposed method shows much faster convergence in finding optimum PN sequences and better performance than existing schemes under the same environment.en_US
dc.relation.ispartofseriesIEEE Transactions on Vehicular Technology;v.65:no.3
dc.subjectCode-division multiple access (CDMA)en_US
dc.subjectFrequency-selective fadingen_US
dc.subjectFully connected (FC)en_US
dc.subjectPartially connecteden_US
dc.subjectRelay networken_US
dc.subjectSignal-to-interference-plus-noise ratio (SINR)en_US
dc.subjectSpreading sequenceen_US
dc.titleSpreading-sequence design for partially connected multirelay networks under multipath fadingen_US
dc.typeConference paperen_US
dc.rights.holder© Copyright 2016 IEEE - All rights reserved.en_US

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