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The advent of various real-time multimedia applications in high-speed networks creates a need for quality of service (QoS) based multicast routing. Two important QoS constraints are the bandwidth constraint and the end-to-end delay constraint. The QoS based multicast routing problem is a known NP-complete problem that depends on (1) bounded end-to-end delay and link bandwidth along the paths from...
High-speed communication network technologies such as MPLS, ATM, DiffServ, etc can support multiple classes of traffic with different quality of service (QoS) requirements and diverse traffic characteristics. A main QoS requirement is packet/cell loss ratio (PLR/CLR). We need a real-time expression for calculating the loss ratio in these networks where statistical multiplexing is an important factor...
In this paper, we propose an energy-aware QoS routing protocol for wireless sensor networks. The protocol finds energy-efficient paths for delay-constrained data in realtime traffic. The described QoS routing problem is very similar to typical path constrained path optimization (PCPO) problems, which are proved to be NP-complete. Hence we present a heuristic solution for the aforesaid problem. We...
ATM as a high-speed cell switching technology can support multiple classes of traffic with different quality of service (QoS) requirements and diverse traffic characteristics. A main QoS requirement is the cell loss ratio (CLR). We need a real-time expression for the CLR calculation in ATM networks where the statistical multiplexing is an important factor. The existing analytical methods for the CLR...
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