TY - JOUR
T1 - A comprehensive framework for Double Spatial Modulation under imperfect channel state information
AU - Goutham, Goutham Simha
AU - Shriharsha, K.
AU - M.A.N.S., Raghavendra
AU - Acharya, U. Shripathi
N1 - Funding Information:
This research work was supported by the project entitled “Uncoordinated Secure and Energy Aware Access in Distributed Wireless Networks” sponsored by Information Technology Research Academy (ITRA) Media Lab Asia, Mumbai vide grant no. ITRA/15(64)/Mobile/USEAADWN/01 dated September 19,2013. Goutham Simha G.D. received his M.Tech. degree in digital electronics and communications in the year 2009 during the same he has worked in LEOs ISRO Bangalore, for a project based on design and implementation of ATP sensor for optical inter-satellite links. Currently he is a Research scholar in the Department of Electronics and Communication Engineering, National Institute of Technology Karnataka, Surathkal, India. He was also part of “Uncoordinated Secure and Energy Aware Access in Distributed Wireless Networks” project which was sponsored by Information Technology Research Academy (ITRA) Media Lab Asia. His areas of interest are: MIMO Wireless communications, Optical Wireless communications and Error Control Coding. Shriharsha Koila received his B.E. degree in Electronics and Communication Engineering from Malnad College of Engineering (affiliated to VTU), Hassan in 2012 and M.Tech degree from National Institute of Technology Karnataka in 2015. He was part of “Secure Turbulence Resistant Free Space Optical FSO links for Broad Band Wireless Access Networks” project funded by Department of Information Technology India. His research interests are Wireless Communications with emphasis on Error Control Coding applications. Raghavendra M.A.N.S. received his M.Tech. degree in Communication Engineering from the National Institute of Technology Karnataka, India in 2013. He was involved in “Secure Turbulence Resistant Free Space Optical FSO links for Broad Band Wireless Access Networks” project funded by Department of Information Technology India, and Uncoordinated Secure and Energy Aware Access in Distributed Wireless Networks project which was sponsored by Information Technology Research Academy (ITRA) Media Lab Asia. Currently he is a Research scholar in the Department of Electronics and Communication Engineering, National Institute of Technology Karnataka, India. His areas of interest are: Free Space Optic communications and Error control coding. U. Shripathi Acharya received his Ph.D. degree from Indian Institute of Science, Bangalore in 2005. He was principal coordinator for “Design and Commissioning of Simulators for the Indian Railway Signaling System (for both Single Line and Double Line Operation)” project (2007–2009), “Secure Turbulence Resistant Free Space Optical FSO links for Broad Band Wireless Access Networks” (2009–2012), ‘’ Uncoordinated, Secure and Energy Aware Access in Distributed Wireless Networks” project which was sponsored by Information Technology Research Academy (ITRA) Media Lab Asia (2013–2016) and chief coordinator for project “FIST” (2016–2021). Dr. U. Shripathi Acharya is with National Institute of Technology Karnataka, Surathkal from last 27 years and is currently serving as Professor and Head, Department of Electronics and Communication Engineering. His areas of interest are: Theory and Applications of Error Control Codes, Wireless Communications, Design of Free Space and Underwater Optical Communication Systems.
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/12
Y1 - 2017/12
N2 - The essential requirement for a 5G wireless communication system is the realization of energy efficient as well as spectrally efficient modulation schemes. Double Spatial Modulation (DSM) is a recently proposed high rate Index Modulation (IM) scheme, designed for use in Multiple Input Multiple Output (MIMO) wireless systems. The aim of this scheme is to increase the spectral efficiency of conventional Spatial Modulation (SM) systems while keeping the energy efficiency intact. In this paper, the impact of imperfect channel knowledge on the performance of DSM system under Rayleigh, Rician and Nakagami-m fading channels has been quantified. Later, a modified low complexity decoder for the DSM scheme has been designed using ordered block minimum mean square error (OB-MMSE) criterion. Its performance under varied fading environments have been quantified via Monte Carlo simulations. Finally, a closed form expression for the pairwise error probability (PEP) for a DSM scheme under conditions of perfect and imperfect channel state information has been derived. This is employed to calculate the upper bound on the average bit error probability (ABEP) over aforementioned fading channels. It is observed that, under perfect and imperfect channel conditions DSM outperforms all the other variants of SM by at least 2dB at an average bit error ratio (ABER) of 10−5. Tightness of the derived upper bound is illustrated by Monte Carlo simulation results.
AB - The essential requirement for a 5G wireless communication system is the realization of energy efficient as well as spectrally efficient modulation schemes. Double Spatial Modulation (DSM) is a recently proposed high rate Index Modulation (IM) scheme, designed for use in Multiple Input Multiple Output (MIMO) wireless systems. The aim of this scheme is to increase the spectral efficiency of conventional Spatial Modulation (SM) systems while keeping the energy efficiency intact. In this paper, the impact of imperfect channel knowledge on the performance of DSM system under Rayleigh, Rician and Nakagami-m fading channels has been quantified. Later, a modified low complexity decoder for the DSM scheme has been designed using ordered block minimum mean square error (OB-MMSE) criterion. Its performance under varied fading environments have been quantified via Monte Carlo simulations. Finally, a closed form expression for the pairwise error probability (PEP) for a DSM scheme under conditions of perfect and imperfect channel state information has been derived. This is employed to calculate the upper bound on the average bit error probability (ABEP) over aforementioned fading channels. It is observed that, under perfect and imperfect channel conditions DSM outperforms all the other variants of SM by at least 2dB at an average bit error ratio (ABER) of 10−5. Tightness of the derived upper bound is illustrated by Monte Carlo simulation results.
UR - https://www.scopus.com/pages/publications/85032967110
UR - https://www.scopus.com/pages/publications/85032967110#tab=citedBy
U2 - 10.1016/j.phycom.2017.10.010
DO - 10.1016/j.phycom.2017.10.010
M3 - Article
AN - SCOPUS:85032967110
SN - 1874-4907
VL - 25
SP - 519
EP - 526
JO - Physical Communication
JF - Physical Communication
ER -
SDG 7 Affordable and Clean Energy