Abstract
In this paper, a representative set of QoS models and QoS-aware on-demand routing protocols are reviewed with emphasis on their ability to support QoS in mobile ad-hoc networks (MANETs) possibly used in WSNs. In particular IntServ, DiffServ, FQMM, and SWAN QoS models are reviewed followed by different QoS-aware on-demand routings in MANETs from different perspectives such as the challenges, classifications, algorithmic aspects in QoS provisions. Tradeoff in providing support to real time (RT) and best effort (BE) traffic is highlighted. Finally, a detailed and comprehensive comparison table is provided for better understanding of QoS provision in MANETs.
Highlights
Mobile ad-hoc network (MANET) [1] is a collection of wireless mobile nodes, dynamically forming a temporary network without pre-existing network infrastructure or centralized administration
A representative set of quality of service (QoS) models and QoS-aware on-demand routing protocols are reviewed with emphasis on their ability to support QoS in mobile ad-hoc networks (MANETs) possibly used in WSNs
In particular Integrated Service (IntServ), DiffServ, FQMM, and Stateless Wireless Ad-hoc Networks (SWAN) QoS models are reviewed followed by different QoS-aware on-demand routings in MANETs from different perspectives such as the challenges, classifications, algorithmic aspects in QoS provisions
Summary
Mobile ad-hoc network (MANET) [1] is a collection of wireless mobile nodes, dynamically forming a temporary network without pre-existing network infrastructure or centralized administration. MANETs for wireless sensing and networking have certain unique characteristics that pose several difficulties in provisioning quality of service (QoS). They are: dynamic network topology, lack of precise state information, lack of central control, error-prone shared radio channels, limited resource availability and hidden terminal problems [2]. It is important to understand both QoS models and QoS routings together in MANETs and there are number of papers in the literature that discuss comparisons between them (see [8,9] and references therein). The paper is organized as follows: five QoS models are described in detail and challenges in providing QoS are discussed with the summary of some related work in the literature.
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