Enhanced spatial modulation with multiple constellations

Chien Chun Cheng, Hikmet Sari, Serdar Sezginer, Yu-Ted Su

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

12 Scopus citations

Abstract

Spatial modulation (SM) has recently drawn a great deal of attention, particularly due to the low complexity that it promises for both the transmitter and the receiver sides. However, this technique has a significant spectral efficiency loss with respect to spatial multiplexing (SMX) with the same number of transmit (Tx) antennas, and when the modulation order is increased to achieve the same spectral efficiency, it loses in terms of the bit error rate (BER). In this paper, a new type of SM (referred to as Enhanced SM) is proposed which increases the number of bits transmitted per channel use compared to conventional SM. Note that conventional MEMO techniques including SMX and SM employ a fixed signal constellation. In our proposed technique, some information bits select not only the index(es) of the active antenna(s), but also the constellations to be transmitted from each of them. Both the closed-form analysis and the numerical results demonstrate that the proposed technique achieves better performance than conventional SM and that in most cases it also outperforms SMX.

Original languageEnglish
Title of host publication2014 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2014
PublisherIEEE Computer Society
Pages1-5
Number of pages5
ISBN (Print)9781479940677
DOIs
StatePublished - 1 Jan 2014
Event2014 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2014 - Chisinau, Moldova, Republic of
Duration: 27 May 201430 May 2014

Publication series

Name2014 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2014

Conference

Conference2014 IEEE International Black Sea Conference on Communications and Networking, BlackSeaCom 2014
CountryMoldova, Republic of
CityChisinau
Period27/05/1430/05/14

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