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Optimization of Multimedia Progressive Transmission Over MIMO Channels

Optimization of Multimedia Progressive Transmission Over MIMO Channels
Chang, Seok-HoChoi, Jihwan P.Cosman, Pamela C.Milstein, Laurence B.
DGIST Authors
Choi, Jihwan P.
Issue Date
IEEE Transactions on Vehicular Technology, 65(3), 1244-1260
Article Type
ArchitectureBellsBlock CodesCodes (Symbols)Communication Channels (Information Theory)Data Communication EquipmentData Communication SystemsDiagonal Bell Labs Space-Time Architecture (D-Blast)Diversity-Multiplexing Tradeoff (DMT)Diversity-Multiplexing Tradeoffs (DMT)ErrorsFeedback ControlGroup Zeroforcing ReceiverInformation Outage ProbabilityIterative DecodingMean Square ErrorMIMO SystemsMinimum Mean Square Error (MMSE) ReceiverMinimum Mean Square Errors (MMSE)Multimedia Progressive SourcesMultiple-Input-Multiple-Ouput (MIMO) SystemsMultiplexingOrthogonal Space-Time Block Codes (OSTBCs)Piecewise Linear TechniquesProbabilitySignal-to-Noise RatioSpace-Time Adaptive ProcessingSpace-Time ArchitectureSpace-Time Block Coding (STBC)Space-Time CodesTelecommunication RepeatersVertical Bell Labs Space-Time Architecture (V-BLAST)Zero Forcing Receivers
This paper studies the optimal transmission of multimedia progressive sources, which require unequal target error rates in their bitstream, over multiple-input-multiple-output (MIMO) channels. First, we derive the information outage probability expression of a space-time code for an arbitrarily given piecewise-linear diversity-multiplexing tradeoff (DMT) function and the conditions for the existence of a crossover point of the information outage probability curves of the space-time codes. We prove that as long as the crossover point of the outage probabilities exists, as spectral efficiency increases, the crossover point in the signal-to-noise ratio (SNR) monotonically increases, whereas that of the outage probability monotonically decreases. This analysis can be applied to any space-time code, receiver, and propagation channel with a given DMT function. As a specific example, we analyze the two-layer diagonal Bell Labs space-time architecture (D-BLAST) with a group zero-forcing receiver, the vertical BLAST (V-BLAST) with a minimum mean-square error receiver, and orthogonal space-time block codes (OSTBCs), and prove the monotonic behavior of the crossover point for those codes. Based on that, with respect to D-BLAST, V-BLAST, and OSTBC, we derive a method for the optimal space-time coding of a sequence that contains numerous progressive packets. We show that by employing the optimization method rather than exhaustive search, the computational complexity involved with optimal space-time coding can be exponentially reduced without losing any peak SNR performance. © 2015 IEEE.
Institute of Electrical and Electronics Engineers Inc.
Related Researcher
  • Author Choi, Jihwan P. NC(Networks and Communications) Research Group
  • Research Interests Wireless and space communication systems; Cross-layer network design; 위성 통신 네트워크
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Department of Information and Communication EngineeringNC(Networks and Communications) Research Group1. Journal Articles

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