Flow-oriented protocols for scalable wireless networks
MSWiM '02 Proceedings of the 5th ACM international workshop on Modeling analysis and simulation of wireless and mobile systems
Energy-efficient collision-free medium access control for wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
An overlay MAC layer for 802.11 networks
Proceedings of the 3rd international conference on Mobile systems, applications, and services
Utilization and fairness in spectrum assignment for opportunistic spectrum access
Mobile Networks and Applications
Adaptive energy-efficient registration and online scheduling for asymmetric wireless sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Energy-efficient medium access control protocols for wireless sensor networks
EURASIP Journal on Wireless Communications and Networking
Medium-Contention Based Energy-Efficient Distributed Clustering (MEDIC) for Wireless Sensor Networks
International Journal of Distributed Sensor Networks
Understanding the power of distributed coordination for dynamic spectrum management
Mobile Networks and Applications
Traffic-Aware MAC Protocol Using Adaptive Duty Cycle for Wireless Sensor Networks
Information Networking. Towards Ubiquitous Networking and Services
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We present the hybrid activation multiple access (HAMA) protocol for ad hoc networks. Unlike previous channel access scheduling protocols that activate either nodes or links only, HAMA is a node-activation channel access protocol that also maximizes the chance of link activations using time- and code-division schemes. HAMA only requires identifiers of the neighbors within two hops from each node to schedule channel access. Using this neighborhood information, each node determines whether to transmit in the current time slot on a dynamically assigned spreading code. A neighbor protocol supplements HAMA with up-to-date two-hop neighborhood information by reliably propagating the one-hop neighbor updates through a novel random access technique. The throughput and delay characteristics of HAMA in randomly-generated multihop wireless networks are studied by analyses and simulations. The results of the analyses show that HAMA achieves higher channel utilization in ad hoc networks than a distributed scheduling scheme based on node activation, similar throughout as a well-known scheduling algorithm based on complete topology information, and much higher throughout than the ideal CSMA and CSMA/CA protocols.