Mobility

Asynchronous Multichannel MAC Design With Difference-Set-Based Hopping Sequences

Date Added: May 2011
Format: PDF

Most existing multichannel Medium Access Control (MAC) protocols have at least one of the following four performance bottlenecks: global synchronization among users; dedicated control channel for signaling exchange; dedicated control phase for signaling exchange; and complete knowledge of all users' channel selection strategies. In this paper, the authors first design a hopping sequence by combining multiple difference sets to ensure a high rendezvous probability of users over multiple channels. Applying the hopping sequence to all users, they then propose a Difference-Set-based Multichannel MAC (DSMMAC) protocol to overcome the performance bottlenecks.