In this paper, a novel idea for rate allocation combining both vertical coupling and horizontal coupling constraints is proposed, and a unified utility function to balance two paradoxical issues: efficiency and fairne...In this paper, a novel idea for rate allocation combining both vertical coupling and horizontal coupling constraints is proposed, and a unified utility function to balance two paradoxical issues: efficiency and fairness, revenue and cost is elaborated in WCDMA networks. Then, the optimal rate allocation problem is formulated as a network utility maximization(NUM) model based on cross-layer design and end-to-end congestion control, aiming at exploring the impacts of wired networks and the characteristics of radio access networks(RANs) on rate allocation. Furthermore, a distributed algorithm is derived, which can effectively match load states between RANs and wired networks, followed by a detailed illustration of the practical implementations. Numerical results demonstrate a signifi cant performance improvement in the end-to-end throughput.展开更多
Based on Delta network, Baseline network and current VLSI technique development level, a new family of MINs using 8× 8 switches which is called Super Recursive Baseline Interconnection Net-work (SRB) has been pre...Based on Delta network, Baseline network and current VLSI technique development level, a new family of MINs using 8× 8 switches which is called Super Recursive Baseline Interconnection Net-work (SRB) has been presented. This paper makes network performance analysis, simulation and com-parison, and proves that SRB has superior qualities in network pass rates, bandwidths and perfor-mance/cost ratios, etc. Therefore, SRB is proved to be a family of Multistage Interconnection Network simple in routing, superior in performance, and easy in expanding.展开更多
基金supported by National Natural Science Foundation of China (61172079, 61231008, 61201141, 61301176)111 Project (B08038)+1 种基金National S&T Major Project (2010ZX03003001)Shaanxi Province Science and Technology Research and Development Program (2011KJXX-40)
文摘In this paper, a novel idea for rate allocation combining both vertical coupling and horizontal coupling constraints is proposed, and a unified utility function to balance two paradoxical issues: efficiency and fairness, revenue and cost is elaborated in WCDMA networks. Then, the optimal rate allocation problem is formulated as a network utility maximization(NUM) model based on cross-layer design and end-to-end congestion control, aiming at exploring the impacts of wired networks and the characteristics of radio access networks(RANs) on rate allocation. Furthermore, a distributed algorithm is derived, which can effectively match load states between RANs and wired networks, followed by a detailed illustration of the practical implementations. Numerical results demonstrate a signifi cant performance improvement in the end-to-end throughput.
基金Supported by the National Natural Science Foundation of China under Grant No.60434030(国家自然科学基金)the National High-Tech Research and Development Plan of China under Grant No.2006AA01Z218(国家高技术研究发展计划(863))the National Research Foundation for the Doctoral Program of Higher Education of China under Grant No.20050335020(国家教育部博士点基金)
文摘Based on Delta network, Baseline network and current VLSI technique development level, a new family of MINs using 8× 8 switches which is called Super Recursive Baseline Interconnection Net-work (SRB) has been presented. This paper makes network performance analysis, simulation and com-parison, and proves that SRB has superior qualities in network pass rates, bandwidths and perfor-mance/cost ratios, etc. Therefore, SRB is proved to be a family of Multistage Interconnection Network simple in routing, superior in performance, and easy in expanding.
