NDLI: Capacity enhancement of half-duplex multi-relay system in impulsive noise environment

Content Provider	IEEE Xplore Digital Library
Author	El-Mahdy, A.E.-S. El-Nemr, A.A.
Copyright Year	2013
Description	Author affiliation: Fac. of Inf. Eng. & Technol., German Univ. in Cairo, Cairo, Egypt (El-Mahdy, A.E.-S.; El-Nemr, A.A.)
Abstract	In this paper, we study two-hop communication protocol in presence of Additive Class-A impulsive noise, where relay nodes assist in the communication between two terminals. The terminals operate in half-duplex mode; hence the transmission of one information symbol from the source terminal to the destination terminal occupies two time slots. This leads to a loss in spectral efficiency due to the per-log factor one-half in corresponding capacity expressions. We propose to extend the two-path protocol to the case of multi-relay networks using decode-and-forward scheme. This relay protocol avoids the pre-log factor one-half. The communication channels between source and relays and between the relays and destination are assumed to be Rayleigh flat fading. The performance of the network is investigated in presence of the impulsive noise for perfect and estimated channel. The performance is measured in terms of bit error rate. Moreover, the outage probability is evaluated when one relay is used, and it is compared with the one for the multi-relay system. Channel estimation is performed using least square algorithm. The performance of the channel estimation algorithm is measured in terms of the mean square error of estimation.
Sponsorship	IEEE Poland Sect. CAS Chapt.
Starting Page	262
Ending Page	267
File Size	456532
Page Count	6
File Format	PDF
ISBN	9788362065172
ISSN	23260319
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-26
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Poznan Univ of Technology
Subject Keyword	Wireless communication Protocols Relay channel Bit error rate Half-duplex Channel estimation Mean square error methods Probability density function Fading channel Relays Decode and forward Signal to noise ratio
Content Type	Text
Resource Type	Article

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