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      Enhancing Satellite System Throughput Using Adaptive HARQ for Delay Tolerant Services in Mobile Communications

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          Abstract

          In this paper we propose the introduction of adaptive hybrid automatic repeat request (HARQ) in the context of mobile satellite communications. HARQ schemes which are commonly used in terrestrial links, can be adapted to improve the throughput for delay tolerant services. The proposed method uses the estimation of the mutual information between the received and the sent symbols, in order to estimate the number of bits necessary to decode the message at next transmission. We evaluate the performance of our method by simulating a land mobile satellite (LMS) channel. We compare our results with the static HARQ scheme, showing that our adaptive retransmission technique has better efficiency while keeping an acceptable delay for services.

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          Most cited references 2

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          Adaptive Transmission Techniques for Mobile Satellite Links

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            Prediction of hybrid-ARQ based on mutual information model for LDPC coded OFDM system

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              Author and article information

              Journal
              2014-11-13
              2015-03-16
              Article
              1411.3625

              http://arxiv.org/licenses/nonexclusive-distrib/1.0/

              Custom metadata
              7 pages, 8 figures, Wireless Telecommunications Symposium WTS 2015
              cs.NI

              Networking & Internet architecture

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