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      • Department of Electrical and Electronics Engineering
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      On secrecy rate analysis of spatial modulation and space shift keying

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      Author
      Aghdam, Sina Rezaei
      Duman, Tolga M.
      Di Renzo, M.
      Date
      2015
      Source Title
      Proceedings of the International Black Sea Conference on Communications and Networking, IEEE 2015
      Publisher
      IEEE
      Pages
      63 - 67
      Language
      English
      Type
      Conference Paper
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      Abstract
      Spatial modulation (SM) and space shift keying (SSK) represent transmission methods for low-complexity implementation of multiple-input multiple-output (MIMO) wireless systems in which antenna indices are employed for data transmission. In this paper, we focus our attention on the secrecy behavior of SSK and SM. Using an information-theoretic framework, we derive expressions for the mutual information and consequently compute achievable secrecy rates for SSK and SM via numerical evaluations. We also characterize the secrecy behavior of SSK by showing the effects of increasing the number of antennas at the transmitter as well as the number of antennas at the legitimate receiver and the eavesdropper. We further evaluate the secrecy rates achieved by SM with different sizes of the underlying signal constellation and compare the secrecy performance of this scheme with those of general MIMO and SIMO systems. The proposed framework unveils that SM is capable of achieving higher secrecy rates than the conventional single-antenna transmission schemes. However, it underperfoms compared to a general MIMO system in terms of the achievable secrecy rates.
      Keywords
      MIMO wiretap channel
      Antennas
      Communication channels (information theory)
      Information theory
      Local area networks
      Modulation
      Network layers
      Mimo wiretap channels
      Physical layer security
      Secrecy capacity
      Space-shift keying
      Spatial modulations
      MIMO systems
      Permalink
      http://hdl.handle.net/11693/27174
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/BlackSeaCom.2015.7185087
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      • Department of Electrical and Electronics Engineering 3524
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