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Aggregate scheduling techniques have been developed and deployed to avoid complexities of Integrated Services model. A major breakthrough in this regard is in terms of scheduling with Packet Scale Rate Guarantee. However, fundamental limitation of the method lies in unbounded growth of end-to-end delay, whenever the strict relation between utilization and number of hops traversed, fails. A tighter...
Long range dependence (LRD) in network traffic is known for sometime. Numerous efforts have been made to model and analyze effect of such traffic on user experience, resource management etc. Buffer management is one of the key element of such resource management. It has long been established that LRD traffic causes higher buffer overflow probability and number of studies confirms this. Although, many...
Aggregation of flows into classes is used to avoid the scalability problems of IntServ model and this requires per-class scheduling decisions. There are number of issues associated with such approach e.g. what will be per-flow guarantee, which flows are to be aggregated together, how to determine service order among multiple classes and within a class etc. DiffServ model is a framework wherein class...
Providing high quality communications service among mobile wireless devices is basically a challenging task in wireless ad hoc networks. In this paper, we propose a route stability based multipath quality of service (QoS) routing (SMQR) protocol for mobile ad hoc networks (MANETs) to support throughput and delay sensitive real-time applications in MANETs. Reliability of QoS-aware path is improved...
Dynamic topology and limited bandwidth of mobile ad hoc networks (MANETs) make end-to-end QoS support an inherently complex and difficult task. Most of the current QoS routing protocols propose routing based on two QoS metrics. This paper introduces a QoS aware on demand routing protocol that uses signal stability as the routing criteria along with other QoS metrics. The proposed QoS Aware Stable...
Due to bandwidth constraint and highly dynamic topology of mobile ad hoc networks, supporting quality of service (QoS) is a challenging task. In this paper, we present two efficient route recovery mechanisms for QoS routing based on an extension of the AODV (ad hoc on demand distance vector) routing protocol that deals with delay and bandwidth constraints. One is based on route maintenance by intermediate...
The ease of deployment and the infrastructure less nature of mobile ad hoc networks (MANETs) make them highly desirable for the present day multi media communications. Traditional routing protocols may not suffice for real time communications which require QoS support from the network. Though there has been considerable research in this area, most of the routing protocols take into account a single...
Due to resource constraints and dynamic topology of mobile ad hoc networks (MANETs), supporting quality of service (QoS) in MANETs is a challenging task. Although lots of research have been done on supporting QoS in the Internet and other networks, they are not suitable for the MANET environment. While traditional protocol layering is an important abstraction to reduce complexity of network design...
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