Design of New Spatial Modulation Scheme Based on Quaternary Quasi-Orthogonal Sequences

Kim, Hojun; Shang, Yongfeng; Jung, Taejin

doi:10.1587/transcom.2016ebp3415

Cited by 3 publications

(2 citation statements)

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“…In [13], quaternary quasi-orthogonal sequence spatial modulation (Q-QOS-SM) was proposed by using a quaternary quasi-orthogonal sequence (Q-QOS) [14,15] . Meanwhile, a concept called spatial modulation matrix (SMM) was also introduced.…”

Section: ⅰ Introductionmentioning

confidence: 99%

“…(5) It can be seen that GSM allocates one bit more to the column index of SMM compared to the conventional SM. Furthermore, the Q-QOS-SM [13] further increases the number of information bits allocated for column index of SMM. The SMM of Q-QOS-SM is an   ×    matrix and is composed of a group of quaternary quasi-orthogonal sequences (Q-QOS) [14,15] .…”

Section: ⅰ Introductionmentioning

confidence: 99%

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New Spatial Modulation Scheme based on Quaternary Quasi-Orthogonal Sequence for 8 Transmit Antennas

Shang¹,

Kim²,

Kim³

et al. 2015

The Journal of Korean Institute of Communications and Informati

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BSTRACTRecently, a spatial modulation (SM) scheme achieving high throughput based on quaternary quasi-orthogonal sequences (Q-QOSs), referred to as Q-QOS-SM, is presented for        ⋯ transmit antennas. In this paper, based on the design approach of the conventional Q-QOS-SM, new improved QO-SM (I-QO-SM)schemes are proposed for 8 transmit antennas. The new schemes employ Q-QOSs of length 4 or 2 unlike of 8 in the original one, which guarantees more information bits to be allocated for antenna index parts compared to the conventional Q-QOS-SM. By computer simulation results, the proposed scheme are shown to enjoy much higher throughputs compared to the conventional other SM schemes for all simulation environments. include the space-time block code (STBC) [1][2][3] and the vertical Bell Labs layered space-time (V-BLAST) [4][5] , whereby the former provides diversity gain and the latter achieves a high transmission data rate. However, STBC cannot improve the data rate and the orthogonality is lost in the case where there are more than two transmit antennas. Likewise, although V-BLAST can offer many improvements in spectral efficiency and data rate, the high decoding complexity in the optimal receiver and large inter-channel interference make it restricted in practice.

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Section: ⅰ Introductionmentioning

confidence: 99%

Section: ⅰ Introductionmentioning

confidence: 99%