Title :
Chunk-Based Resource Allocation in Multicast MISO-OFDMA with Average BER Constraint
Author :
Papoutsis, V.D. ; Stamouli, A.P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Patras, Patras, Greece
Abstract :
The resource allocation problem for the downlink of Orthogonal Frequency Division Multiple Access (OFDMA) wireless multicast systems is investigated. It is assumed that the Base Station (BS) consists of multiple antennas in a Distributed Antenna System (DAS), whereas each user is equipped with a single antenna. The allocation unit is not the subcarrier, as in conventional OFDMA systems, but a set of contiguous subcarriers (chunk). The aim of the proposed efficient algorithm is to maximize the total throughput subject to constraints on total available power and average Bit Error Rate (BER) over a chunk. Simulation and complexity analysis are provided to support the benefits of chunk-based resource allocation to multicast Multiple Input Single Output (MISO)-OFDMA DAS systems.
Keywords :
OFDM modulation; antenna arrays; computational complexity; error statistics; frequency division multiple access; average BER constraint; base station; chunk-based resource allocation; complexity analysis; contiguous subcarriers; distributed antenna system; multicast MISO-OFDMA; multicast multiple-input single-output-OFDMA DAS systems; multiple-antennas; orthogonal frequency division multiple access wireless multicast systems; single-antenna; Antenna arrays; Bit error rate; Complexity theory; Resource management; Throughput; Wireless communication; DAS; MISO-OFDMA; chunk allocation; multicast systems; multiuser diversity;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.010313.122214
