Date Added: Jun 2012
The authors consider a single-hop Frequency Hopping (FH) Mobile Ad hoc NETwork (MANET). To increase throughput Orthogonal FH (O-FH) with hop-synchronous hopping can be used, thereby allowing collision-free transmissions under certain circumstances. However, as the MANET grows, hopping sequences must be re-used. As a result, nodes sharing the same sequence will experience deterministic collisions while others having a unique sequence will still communicate collision-free. This results in an unfair interference situation and makes performance guarantees difficult to meet for all nodes simultaneously. In this paper, they propose a Collision-Balancing FH (CB-FH) scheme to overcome this drawback.