Reservation Mechanisms for DistributedMulti { path Quality of Service
نویسندگان
چکیده
This paper studies resource reservation mechanisms that can be incorporated into distributed multi{path Quality{of{Service (QoS) routing algorithms. Three resource reservation schemes, the forward reservation scheme, the backward reservation scheme and the hybrid reservation scheme, are investigated. Protocols that combine these resource reservation schemes with a ticket{based distributed QoS routing algorithm are developed. Simulations are carried out to compare the performance of the protocols and to study the impact of system parameters on the performance of the protocols. Our results show that, in most of the cases, backward reservation protocols are more eecient than their forward reservation and hybrid reservation counterparts.
منابع مشابه
Resource reservation mechanisms for distributed multi-path quality of service routing
This paper studies resource reservation mechanisms that can be incorporated into distributed multi–path Quality– of–Service (QoS) routing algorithms. Three resource reservation schemes, the forward reservation scheme, the backward reservation scheme and the hybrid reservation scheme, are investigated. Simulations are carried out to compare the performance of the protocols and to study the impac...
متن کاملImpact of Resource Reservation on the Distributed Multi–path Quality of Service Routing Scheme
This paper studies the impact of resource reservation on the multi–path Quality–of–Service (QoS) routing schemes that use global network state to make routing decisions. Incorporating resource reservation into multi–path QoS routing algorithms greatly changes the communication characteristics in a network system and affects the performance of the routing algorithms. In this paper, we develop a ...
متن کاملPrimary Path Reservation Using Enhanced Slot Assignment in TDMA for Session Admission
Mobile ad hoc networks (MANET) is a self-organized collection of nodes that communicates without any infrastructure. Providing quality of service (QoS) in such networks is a competitive task due to unreliable wireless link, mobility, lack of centralized coordination, and channel contention. The success of many real time applications is purely based on the QoS, which can be achieved by quality a...
متن کاملQuality of Service (QoS) Provisioning in IP-based Broadband Wireless Mobile Networks
In this paper, we propose the seamless switching scheme of RSVP (resource ReSerVation Protocol) branch path for soft handoff in IP micro-mobility domain. Typically, in order to minimize the handoff service disruption of RSVP flows, RSVP message delays and signaling overheads should be minimized. We firstly propose the rerouting scheme of RSVP branch path at a crossover router (CR) at every hand...
متن کاملBandwidth Reservation in Multihop Wireless Networks: Complexity, Heuristics and Mechanisms
We prove that link interferences in multihop wireless networks make the problem of selecting a path satisfying bandwidth requirements an NP-complete problem, even under simplified rules for bandwidth reservation. This is in sharp contrast to path selection in wireline networks where efficient polynomial algorithms exist. We propose three heuristics to compute Quality of Service (QoS) routes in ...
متن کامل