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https://hdl.handle.net/11147/2377
Title: | Performance evaluation of multicast MISO-OFDM systems | Authors: | Özbek, Berna Le Ruyet, Didier Khanfir, Hajer |
Keywords: | Orthogonal frequency division multiplexing Adaptive resource allocation Multiple transmit antennas Precoding vector optimization |
Publisher: | Springer Verlag | Source: | Özbek, B., Le Ruyet, D., and Khanfir, H. (2008). Performance evaluation of multicast MISO-OFDM systems. Annales des Telecommunications/Annals of Telecommunications, 63(5-6), 295-305. doi:10.1007/s12243-008-0027-4 | Abstract: | In this paper, we analyze the performance of multicast orthogonal frequency division multiplexing (OFDM) systems with single and multiple transmit antennas. We show that the resource allocation that includes the subcarrier allocation, bit loading, and the precoding vector selection in the multiple-input single-output (MISO) case is a difficult optimization problem. Consequently, we propose suboptimal algorithms based on the maximization of the sum data rate and the maximization of the minimum user data rate criteria. For practical application, we consider a complete transmission chain by combining powerful erasure codes with the proposed algorithms. Using this scheme, we guarantee that each user receives the same amount of information to decode the same data. Simulation results show that, for both single-input single-output (SISO)-OFDM and MISO-OFDM cases, the proposed multicast OFDM systems achieve gains over the worst user case algorithm. | URI: | http://doi.org/10.1007/s12243-008-0027-4 http://hdl.handle.net/11147/2377 |
ISSN: | 0003-4347 0003-4347 |
Appears in Collections: | Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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