An SINR-based routing and MAC design for QoS in wireless ad hoc networks

In this paper, we propose a cross routing and MAC QoS protocol design, named Signal-to-Interference-plus-Noise-Ratio and Quality-of-Service (SINR-QoS), for wireless ad hoc networks. SINR-QoS is spatial-reuse time division multiple access (STDMA)-based. Unlike most of the conventional approaches, SIN...

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Bibliographic Details
Published in:Wireless networks 2015-05, Vol.21 (4), p.1141-1154
Main Authors: Tsai, Yuan-Chun, Su, Szu-Lin
Format: Article
Language:English
Subjects:
Ad hoc networks
Communication
Communications Engineering
Computer Communication Networks
Computer networks
Design
Electrical Engineering
Engineering
Exchange
IT in Business
Networks
Noise
Protocol
Quality of service
Quality of service architectures
Reuse
Routing
Routing (telecommunications)
Simulation
Time division multiple access
Wireless networks
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Summary:In this paper, we propose a cross routing and MAC QoS protocol design, named Signal-to-Interference-plus-Noise-Ratio and Quality-of-Service (SINR-QoS), for wireless ad hoc networks. SINR-QoS is spatial-reuse time division multiple access (STDMA)-based. Unlike most of the conventional approaches, SINR-QoS manages the spatial reuse based on SINR. When a data flow with end-to-end throughput requirement arrives, the routing part of SINR-QoS, called SINR-QoS-routing (SQ-routing), determines a route, and assigns STDMA slots, transmission rate, and transmission power for each link on the route. The assignment is SINR-based, and thus requires some SINR-related information to coordinate the co-channel interference. Hence, the MAC part of SINR-QoS, called SINR-QoS-MAC (SQ-MAC), is proposed for nodes to acquire and update the SINR-related information. With the specific design of SQ-MAC, SINR-QoS can precisely manage the spatial reuse without explicit channel-gain exchange between interfering neighbors. Simulation results show SINR-QoS outperforms the existing QoS approaches in both total end-to-end throughput and reliability.
ISSN:1022-0038
1572-8196
DOI:10.1007/s11276-014-0840-9