New cross-layer QoS-based scheduling algorithm in LTE system

Authors:
Mohamed A. Abd El-Gawad;Mohsen M. Tatawy;Mohamed S. El-Mahallawy
Affiliations:
Network Planning Dep., National Telecomm. Institute, Cairo, Egypt;Network Planning Dep., National Telecomm. Institute, Cairo, Egypt;Comm. & Electronics Dep., Arab Academy for Science, Technology & Maritime Transport, Cairo, Egypt
Venue:
CIT'11 Proceedings of the 5th WSEAS international conference on Communications and information technology
Year:
2011

Citing 4
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Abstract

Long Term Evolution (LTE) represents an emerging and promising technology for providing broadband ubiquitous internet access and integrating a wide variety of communication services such as high speed data, video and multimedia traffic as well as voice signals. One of the promising approaches to achieve that is the adaptive orthogonal frequency division multiplexing (AOFDM). In AOFDM there are a number of adaptive sub-carriers allocation techniques which lead to improve the system performance by assigning subchannels to the users according to their channel status. In this paper we propose an algorithm takes in its allocation strategy not only the channel status but also quality of service (QoS) aspects like traffic priority and transmission delay. The proposed algorithm performance has been valued and compared in term of throughput with the previous allocation algorithms.