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Superimposed Training based Estimation of Sparse MIMO Channels for Emerging Wireless Networks
Mansoor, Babar; Nawaz, Syed Junaid; Amin, Bilal et al.
2016In Proceedings of ICT 2016
Peer reviewed
 

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Keywords :
Superimposed training; Channel estimation; MIMO; First order statistics; Compressed sensing
Abstract :
[en] Multiple-input multiple-output (MIMO) systems constitute an important part of todays wireless communication standards and these systems are expected to take a fundamental role in both the access and backhaul sides of the emerging wireless cellular networks. Recently, reported measurement campaigns have established that various outdoor radio propagation environments exhibit sparsely structured channel impulse response (CIR). We propose a novel superimposed training (SiT) based up-link channels’ estimation technique for multipath sparse MIMO communication channels using a matching pursuit (MP) algorithm; the proposed technique is herein named as superimposed matching pursuit (SI-MP). Subsequently, we evaluate the performance of the proposed technique in terms of mean-square error (MSE) and bit-error-rate (BER), and provide its comparison with that of the notable first order statistics based superimposed least squares (SI-LS) estimation. It is established that the proposed SI-MP provides an improvement of about 2dB in the MSE at signal-to-noise ratio (SNR) of 12dB as compared to SI-LS, for channel sparsity level of 21.5%. For BER = 10^−2, the proposed SI-MP compared to SI-LS offers a gain of about 3dB in the SNR. Moreover, our results demonstrate that an increase in the channel sparsity further enhances the performance gain
Disciplines :
Electrical & electronics engineering
Author, co-author :
Mansoor, Babar;  COMSATS Institute of Information Technology, Islamabad, Pakistan
Nawaz, Syed Junaid;  COMSATS Institute of Information Technology, Islamabad, Pakistan.
Amin, Bilal;  COMSATS Institute of Information Technology, Lahore, Pakistan.
Sharma, Shree Krishna ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Patwary, Mohammad;  Staffordshire University, Stoke-on-trent, UK > FCES
External co-authors :
yes
Language :
English
Title :
Superimposed Training based Estimation of Sparse MIMO Channels for Emerging Wireless Networks
Publication date :
May 2016
Event name :
23rd International Conference on Telecommunications (ICT)
Event organizer :
IEEE
Event place :
Thessaloniki, Greece
Event date :
16-06-2016 to 18-06-2016
Audience :
International
Main work title :
Proceedings of ICT 2016
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 03 September 2016

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