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Network Performance Analysis of TCP-Based 3GPP LTE Time Division Duplex Systems

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Abstract

This paper deals with the determination of downlink (DL) and uplink (UL) channel split ratio for time division duplex (TDD) based long term evolution (LTE) networks. In a TDD system, UL and DL transmissions are carried out at different time intervals, but share the same frequency band. The TDD framing in LTE is adaptive in the sense that the DL to UL bandwidth ratio may vary with time. This paper proposes an adaptive split ratio (ASR) scheme for LTE networks to automatically adjust the bandwidth ratio of DL to UL, according to the current traffic profile, wireless interference, and transport layer parameters. This provides the maximum aggregate throughput in LTE systems. The performance analysis shows that ASR scheme outperforms static allocation in terms of higher aggregate throughput and better adaptively to network dynamics. Further, it is also observed that the ASR scheme performs well for LTE, compared to worldwide interoperability for microwave access (WiMAX) system.

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Authors and Affiliations

  1. TIFAC CORE in Wireless Technologies, Department of Electronics and Communication Engineering, Thiagarajar College of Engineering, Madurai, 625015, India

    M. S. K. Manikandan, E. Shanthi & S. J. Thiruvengadam

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  1. M. S. K. Manikandan
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  2. E. Shanthi
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  3. S. J. Thiruvengadam
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Correspondence to M. S. K. Manikandan.

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Manikandan, M.S.K., Shanthi, E. & Thiruvengadam, S.J. Network Performance Analysis of TCP-Based 3GPP LTE Time Division Duplex Systems. Wireless Pers Commun 65, 863–873 (2012). https://doi.org/10.1007/s11277-011-0316-5

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  • DOI: https://doi.org/10.1007/s11277-011-0316-5

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