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Uplink Capacity of Two-Hop Relay TDD-CDMA Cellular Networks with Time-Slot Scheduling

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Abstract

In code division multiple access network, the interference has more effect on the capacity than the other cellular networks. To increase the uplink capacity of traditional time division duplex-code division multiple access (TDD-CDMA) cellular networks, the method of two-hop relay is adopted. In this paper, we first present a two-hop relay TDD-CDMA cellular system model, and then design two kinds of time slot scheduling schemes and power control models. Based on the system model, the total interference power to target cell can be analyzed, and then the closed form expressions of the uplink capacity are obtained by mathematical calculating. Finally the impact of different system parameters on networks’ capacity is discussed.

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Acknowledegments

This work is supported by the Chinese National Research Project (2012A138); The National Basic Research Program of China (973 Program) (2011CB302903); The National Natural Science Foundation of China (61372101, 61071113, 60902012, 61201160, 61602263); The National Science and Technology Major Project of China under Grants (2012ZX03004-005-003, 2011ZX03003-003-03); Research Project of Jiangsu Province under Grants (BE2012167, BK2011019, BK20131377, BK20141427, BK20151507, BK20160916); The Six Talent Peaks Project in Jiangsu Province (XYDXXJS-044); The Natural Science Fund for Colleges and Universities in Jiangsu Province under Grants (16KJB510034); The Priority Academic Program Development Project of Jiangsu Higher Education Institutions (yx002001); Sponsored by NUPTSF (Grant Nos. NY212012, NY214065, NY213036, NY216020).

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Authors and Affiliations

  1. School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, Jiangsu, China

    Weifeng Lu & Liwen He

  2. Jiangsu Key Laboratory of Big Data Security & Intelligent Processing, Nanjing University of Posts and Telecommunications, Nanjing, 210023, Jiangsu, China

    Weifeng Lu & Siguang Chen

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  1. Weifeng Lu
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  2. Siguang Chen
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  3. Liwen He
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Correspondence to Weifeng Lu.

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Lu, W., Chen, S. & He, L. Uplink Capacity of Two-Hop Relay TDD-CDMA Cellular Networks with Time-Slot Scheduling. Wireless Pers Commun 97, 1345–1359 (2017). https://doi.org/10.1007/s11277-017-4573-9

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  • DOI: https://doi.org/10.1007/s11277-017-4573-9

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