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Joint Bandwidth and Power Allocation for LTE-Based Cognitive Radio Network Based on Buffer Occupancy

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/61472

Title: Joint Bandwidth and Power Allocation for LTE-Based Cognitive Radio Network Based on Buffer Occupancy
Authors: Asheralieva, Alia Browse this author
Miyanaga, Yoshikazu Browse this author →KAKEN DB
Issue Date: 2016
Publisher: Hindawi Publishing Corporation
Journal Title: Mobile Information Systems
Volume: 2016
Start Page: 1
End Page: 23
Publisher DOI: 10.1155/2016/6306580
Abstract: We investigate the problem of resource allocation in a cognitive long-term evolution (LTE) network, where the available bandwidth resources are shared among the primary (licensed) users (PUs) and secondary (unlicensed) users (SUs). Under such spectrum sharing conditions, the transmission of the SUs should have minimal impact on quality of service (QoS) and operating conditions of the PUs. To achieve this goal, we propose to assign the network resources based on the buffer sizes of the PUs and SUs in the uplink (UL) and downlink (DL) directions. To ensure that the QoS requirements of the PUs are satisfied, we enforce some upper bound on the size of their buffers considering two network usage scenarios. In the first scenario, PUs pay full price for accessing the spectrum and get full QoS protection; the SUs access the network for free and are served on a best-effort basis. In the second scenario, PUs pay less in exchange for sharing the bandwidth and get the reduced QoS guarantees; SUs pay some price for their access without any QoS guarantees. Performance of the algorithms proposed in the paper is evaluated using simulations in OPNET environment. The algorithms show superior performance when compared with other relevant techniques.
Rights: Copyright © 2016 Alia Asheralieva and Yoshikazu Miyanaga.
http://creativecommons.org/licenses/by/4.0/
Type: article
URI: http://hdl.handle.net/2115/61472
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Asheralieva Alia

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