tailieunhanh - Báo cáo hóa học: " Research Article Multiradio Resource Management: Parallel Transmission for Higher Throughput?"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Multiradio Resource Management: Parallel Transmission for Higher Throughput? | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2008 Article ID 763264 9 pages doi 2008 763264 Research Article Multiradio Resource Management Parallel Transmission for Higher Throughput Alessandro Bazzi Gianni Pasolini and Oreste Andrisano WiLab IEIIT-BO CNR DEIS University of Bologna Risorgimento 2 40136 Bologna Italy Correspondence should be addressed to Gianni Pasolini Received 30 November 2007 Accepted 23 April 2008 Recommended by Moe Win Mobile communication systems beyond the third generation will see the interconnection of heterogeneous radio access networks UMTS WiMax wireless local area networks etc. in order to always provide the best quality of service QoS to users with multimode terminals. This scenario poses a number of critical issues which have to be faced in order to get the best from the integrated access network. In this paper we will investigate the issue of parallel transmission over multiple radio access technologies RATs focusing the attention on the QoS perceived by final users. We will show that the achievement of a real benefit from parallel transmission over multiple RATs is conditioned to the fulfilment of some requirements related to the kind of RATs the multiradio resource management MRRM strategy and the transport-level protocol behaviour. All these aspects will be carefully considered in our investigation which will be carried out partly adopting an analytical approach and partly by means of simulations. In this paper in particular we will propose a simple but effective MRRM algorithm whose performance will be investigated in and heterogeneous networks adopted as case studies . Copyright 2008 Alessandro Bazzi et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly .