Generalized spatial modulation for large-scale MIMO systems: analysis and detection

T. Lakshmi Narasimhan, P. Raviteja, A. Chockalingam

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

5 Citations (Scopus)


Generalized Spatial modulation (GSM) uses nt antenna elements but fewer radio frequency chains (nrf) at the transmitter. Spatial modulation and spatial multiplexing are special cases of GSM with nrf = 1 and nrf = nt, respectively. In GSM, apart from conveying information bits through nrf modulation symbols, information bits are also conveyed through the indices of the active nrf transmit antennas. In this paper, we derive analytical bounds on the code-word and bit error probabilities of maximum likelihood detection in GSM. The bounds are shown to be tight at medium to high signal-to-noise ratios (SNR). We also present a low-complexity detection algorithm based on reactive tabu search (RTS) for GSM in large-scale MIMO systems. Simulation results show that the proposed algorithm performs well and scales well in complexity.

Original languageEnglish
Title of host publicationConference Record of the Forty-Eighth Asilomar Conference on Signals, Systems & Computers
EditorsMichael B. Matthews
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages5
ISBN (Electronic)9781479982974
Publication statusPublished - 2014
Externally publishedYes
EventAsilomar Conference on Signals, Systems and Computing 2014 - Pacific Grove, United States of America
Duration: 2 Nov 20145 Nov 2014
Conference number: 48th

Publication series

NameConference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)1058-6393


ConferenceAsilomar Conference on Signals, Systems and Computing 2014
Abbreviated titleACSSC 2014
CountryUnited States of America
CityPacific Grove


  • Detection
  • Generalized spatial modulation
  • Large-scale MIMO systems
  • Performance analysis
  • Reactive tabu search

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