International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

Volume3,May 2016,

Topic : A Review on Spectrum Efficient OFDM Based on Structured Compressed Sensing

Authors:Sreelakshmi V || Nandakumar P

Abstract:Spectrum efficiency is becoming increasingly important for wireless communication systems in order to avoid the congestion of users for the spectrum. OFDM has already been extensively adopted by numerous wireless communication systems like DVB-T, WiMAX, LTE, WiFi, etc, and it is also widely recognized as a prominent modulation technique for future wireless communication systems. Thus, developing spectrum efficient OFDM scheme is essential to achieve high transmission efficiency. Time domain synchronous OFDM (TDS-OFDM) has a higher spectrum efficiency than standard cyclic prefix OFDM (CP-OFDM) by replacing the unknown CP with a known pseudorandom noise (PN) sequence. Currently, TDS-OFDM can support constellations up to 64QAM, but cannot support higher-order constellations like 256QAM due to the residual mutual interferences between the pseudorandom noise (PN) guard interval and the OFDM data block. To solve this problem, break the iterative interference cancellation and propose a new idea of using multiple inter-block-interference (IBI)-free regions of very small size to realize simultaneous multi-channel reconstruction under the framework of structured compressive sensing..

Keywords: CP-OFDM, Iterative interference cancellation, OFDM, Spectrum efficiency, Structured compressed sensing, TDSOFDM.

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DOI: 01.1617/vol3iss5pid214

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Dr.Zhongfu Tan
National Professor,
North China Electric Power University,

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ISSN(Online): 2394-6849

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Thomson Reuters ID : q-6288-2016.
ORCiD Research ID : 0000-0001-9540-6799

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Journal Code : IJERECE
Electronic ISSN : 2394-6849
Impact Factor : 3.689
Frequency : monthly
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