Excessive quantity of control overhead can constitute a major cause of degradation in throughput for wireless mobile ad hoc networks (MANETs). To date, Code Division Multiple Access (CDMA) based multi-channel medium access control (MAC) algorithms in MANETs, rely on the periodic exchange of neighborhood information within two-hop separation to assign a transmission code to a node, in order to avoid the hidden terminal problem (HTP). However, this results in an expensive communication overhead

more »

... d hence aggravates the network performance with the bandwidth under-utilization, energy inefficiency and creating large end-to-end latency. To effectively combat the excessive exchange of control packets for code assignment, this thesis proposes a novel code assignment scheme, termed as twophase coding scheme, and develops it under two different network scenarios, i.e., one is cell-based where location information is available whereas the second case is clustering-adaptive with a dynamic clustering algorithm employed. Location-aware two-phase coding multi-channel MAC protocol (LA-TPCMMP) employs the first-phase code to differentiate between multiple adjacent cells and the second-phase code is used to identify each node in one cell. This method elimi-