Advanced Rake Receiver for Multiple Access M-ary Modulation UWB System in the IEEE Multipath Channel

An, Jinyoung

doi:10.5573/ieie.2014.51.12.012

Cited by 1 publication

(3 citation statements)

References 9 publications

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“…However, the selected subcarriers are associated with the combination type, so that the lost data information can be compensated for. This system has been proved to outperform the conventional OFDM system in many aspects [1][2][3][4]. Usually we know, it would be better if an OFDM system is capable of high power efficiency and high SE.…”

Section: Proposed System Descriptionmentioning

confidence: 99%

“…In addition, this new system was also demonstrated to have a lower bit error rate (BER) over AWGN (Additive White Gaussian Noise)and Rayleigh fading channel in [2]. And it was also applied to a UWB system in [3] [4] and optical wireless communication systems in [5].…”

Section: Introductionmentioning

confidence: 99%

“…the order of the PSK symbols' subcarrier0: the zero amplitude subcarrier position) 0,1][1,2,3,4,5,6,0,7] …”

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confidence: 99%

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A Parallel Combinatory OFDM System with Weighted Phase Subcarriers

Zheng¹

2012

KSII TIIS

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Orthogonal Frequency Division Multiplexing (OFDM) is usually regarded as a spectral efficient multicarrier modulation technique, yet it suffers from a high peak-to-average power ratio (PAPR) problem. Among all the existing PAPR reduction techniques in OFDM systems, side information based PAPR reduction techniques such as partial transmit sequence (PTS) and selective mapping (SLM) schemes, have attracted the most attention. However, the transmission of side information results in somewhat spectral loss and this does not significantly improve the bit error rate (BER) performance. Parallel combinatory (PC) OFDM yields higher spectral efficiency (SE) and better BER performance on Gaussian channels,while is a little but not obvious PAPR improvement over the ordinary OFDM system. This investigation aimed to design a 'perfect' OFDM system. We introduce the side information to rotate the subcarrier phases of our novel PC-OFDM system structure, and call this new system the SIPC(Side information based Parallel Combinatory)-OFDM system. The proposed system achieves better PAPR and SE performance. In addition, considering the tradeoff of system parameters, the proposed system also has the properties of a higher BER.

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Section: Proposed System Descriptionmentioning

confidence: 99%