Floor acquisition multiple access (FAMA) for packet-radio networks
SIGCOMM '95 Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
A novel scheme to interconnect multiple frequency hopping channels into an ad hoc network
ACM SIGMOBILE Mobile Computing and Communications Review - Special issue on wireless pan & sensor networks
A supporting service differentiation multichannel MAC protocol for wireless ad hoc networks
International Journal of Communication Networks and Distributed Systems
Can multiple subchannels improve the delay performance of RTS/CTS-based MAC schemes?
IEEE Transactions on Wireless Communications
Maintaining a ring structure for mobile ad hoc computing
Journal of Parallel and Distributed Computing
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A new multichannel MAC protocol, called Hop Reservation Multiple Access (HRMA), for packet-radio networks is introduced, specified and analyzed. HRMA is based on slow frequency hopping spread spectrum (FHSS) and takes advantage of the time slotting necessary for frequency hopping. HRMA applies a hop reservation and handshake mechanism on every hop, to guarantee collision-free data transmission in the presence of hidden terminals; this is accomplished by allowing a pair of communicating nodes to reserve a frequency hop (channel). HRMA provides a baseline to offer QoS in ad-hoc networks, based on simple half-duplex slow FHSS radios. We analyze the throughput achieved in HRMA for the case of a fully connected network, assuming variable-length packets, and compare it against an ideal multichannel access protocol and the multichannel slotted ALOHA protocol. The numerical results show that HRMA can achieve much higher throughput than multichannel slotted ALOHA in the traffic-load ranges of interest, especially when the average packet length is large compared to a slot size in which case the maximum throughput of HRMA is close to what can be obtained with an ideal protocol.