Chunk-Based Resource Allocation in Distributed MISO-OFDMA Systems with Fairness Guarantee

• Published in: IEEE communications letters Vol. 15; no. 4; pp. 377 - 379
• Main Authors: Papoutsis, V D, Kotsopoulos, S A
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.2011; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Allocations; Antennas; Applied sciences; chunks; Complexity theory; Computer simulation; Correlation; distributed antenna system; Downlink; Exact sciences and technology; Frequency division multiple access; Information, signal and communications theory; MISO; Multiplexing; OFDMA; Radiocommunications; Resource allocation; Resource management; Signal and communications theory; Stations; Subcarriers; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Throughput; Transmission and modulation (techniques and equipments); Wireless communication; Base station; Wireless telecommunication; chunks; Resource allocation; Frequency division multiple access; Information rate; Equity; Downlink; distributed antenna system; Distributed system; Subcarrier; Information transmission; Algorithm performance; Simulation; Orthogonal frequency division multiplexing; OFDMA; Resource management; MISO system; MISO; Antenna array; Antenna
• ISSN: 1089-7798; 1558-2558
• DOI: 10.1109/LCOMM.2011.020111.102273

The resource allocation problem for the downlink of Orthogonal Frequency Division Multiple Access (OFDMA) wireless systems is investigated. It is assumed that the Base Station (BS) consists of multiple antennas in a Distributed Antenna System (DAS), whereas a single antenna is available to each user. Also, the allocation unit is not the subcarrier, as in conventional OFDMA systems, but a set of contiguous subcarriers (chunk). The proposed suboptimal but efficient algorithm maximizes the system throughput subject to total available power and proportional data rate constraints among users. Simulation and complexity comparison are provided to show the benefits of chunk-based resource allocation to DASs.