Improved fiber nonlinearity mitigation in dispersion managed optical OFDM links

Tamilarasan, Ilavarasan; Brindha, S.; Meenakshi, M.

doi:10.1016/j.optcom.2016.10.045

Cited by 4 publications

(1 citation statement)

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“…Space-Time Block Coding (STBC) is a scheme developed for MIMO systems to provide higher diversity gain and coding gain [3]. The subcarrier power allocation algorithms to meet the requirements of next generation wireless technology are proposed in [4][5][6]. In [7], a multipath diversity scheme in conjunction with OFDM is proposed to improve the BER performance of a MIMO system.…”

Section: Introductionmentioning

confidence: 99%

On the performance of code word diversity based quasi orthogonal space time block codes in multiple-input-multiple-output systems

Kumaraswamy¹,

Manickavel²,

Valimohamad

et al. 2020

IJECE

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In the recent past, a lot of researches have been put into designing a Multiple-Input-Multiple-Output (MIMO) system to provide multimedia services with higher quality and at higher data rate. On par with these requirements, a novel Quasi Orthogonal Space Time Block Code (QOSTBC) scheme based on code word diversity is proposed, which is a multi-dimensional approach, in this paper. The term code word diversity is coined, since the information symbols were spread across many code words in addition to traditional time and spatial spreading, without increasing transmission power and bandwidth. The receiver with perfect channel state information estimates the transmitted symbols with less probability of error, as more number of samples is available to estimate given number of symbols due to the extra diversity due to code words. The simulation results show a significant improvement in the Bit Error Rate (BER) performance of the proposed scheme when compared with the conventional schemes.

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