Analysis of the increase and decrease algorithms for congestion avoidance in computer networks
Computer Networks and ISDN Systems
Multiuser Detection
Heterogeneous Multicast in Heterogeneous QoS Networks
ICON '01 Proceedings of the 9th IEEE International Conference on Networks
Elements of Information Theory (Wiley Series in Telecommunications and Signal Processing)
Elements of Information Theory (Wiley Series in Telecommunications and Signal Processing)
Cross-layer optimal rate allocation for heterogeneous wireless multicast
EURASIP Journal on Wireless Communications and Networking - Special issue on fairness in radio resource management for wireless networks
Radio Resource Allocation Algorithms for the Downlink of Multiuser OFDM Communication Systems
IEEE Communications Surveys & Tutorials
Multicast routing and its QoS extension: problems, algorithms, and protocols
IEEE Network: The Magazine of Global Internetworking
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We propose a new resource allocation algorithm with minimum mean square error (MMSE) detector formulticast linear precoded orthogonal frequency divisionmultiplexing (LP-OFDM) systems. To increase the totalmulticast bit rate, this algorithm jointly uses the LP-OFDM modulation technique and an adaptation of the OFDM-basedmulticast approaches to exploit the transmission link diversities of users. The LP technique applied to multicast OFDM systems with zero forcing (ZF) detector has already proved its ability to increase the unirate multicast system bit rate in a power line communication (PLC) context. The new MMSE detector and the new related bit-loading algorithm are developed to enhance the ZF detector results. To improve both the bit rate and the fairness amongmulticast users, the utilization of the LP component inmultiratemulticast systems is then investigated. Simulations are run over indoor PLC channels, and it is shown that the proposed LP-based methods outperform the OFDM-based methods in terms of total bit rate and fairness index for both unirate and multirate multicast systems. Additionally, it is shown that the proposed bit-loading algorithm with MMSE detector outperforms the ZF detector and the OFDM-based receiver in terms of total multicast bit rate and fairness among users.