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Optimal Relay Station Placement with Non-uniform User Distribution

التفاصيل البيبلوغرافية
العنوان: Optimal Relay Station Placement with Non-uniform User Distribution
المؤلفون: Sol Yi Lee, Taejoon Kim
المصدر: Wireless Personal Communications. 107:121-136
بيانات النشر: Springer Science and Business Media LLC, 2019.
سنة النشر: 2019
مصطلحات موضوعية: Scheme (programming language), business.industry, Computer science, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Signal-to-interference-plus-noise ratio, 020206 networking & telecommunications, Throughput, 02 engineering and technology, Throughput maximization, Computer Science Applications, law.invention, Relay, law, Genetic algorithm, 0202 electrical engineering, electronic engineering, information engineering, Key (cryptography), Wireless, 020201 artificial intelligence & image processing, Electrical and Electronic Engineering, business, computer, Computer network, computer.programming_language
الوصف: An relay station (RS) is a low-cost alternative to upgrading a conventional communication infrastructure. It can cope with ever-increasing wireless traffic demand and eliminate shadow areas efficiently. Accordingly, relay-based networking is a key technology for the next generation wireless communication infrastructure. In a relay-based network, the signal to interference plus noise ratio (SINR) and the throughput of the mobile stations (MSs), especially those located at cell edges, heavily depend on the location of the RSs. Hence, it is important to determine the optimal RS locations. In this paper, we address an anomaly which causes a serious fairness problem among MSs when the RS locations are determined only by throughput maximization. Moreover, RS locations were considered for a non-uniform geographical user distribution environment, because in the real world users are not uniformly distributed. We propose a utility optimal RS placement scheme based on a genetic algorithm (GA), which considers both the fairness problem and the non-uniform user distribution. An extensive simulation study verified that the proposed scheme extends cell coverage and maximizes utility while guaranteeing fairness among MSs.
تدمد: 1572-834X
0929-6212
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::4dc7568619a89ae1c0277f7c6a624499
https://doi.org/10.1007/s11277-019-06243-y
حقوق: CLOSED
رقم الأكسشن: edsair.doi...........4dc7568619a89ae1c0277f7c6a624499
قاعدة البيانات: OpenAIRE
الوصف
تدمد:1572834X
09296212