Actually, in wireless ad hoc networks, medium contention is the major cause of dropped packets, which is also an indication that the network has been overloaded.
Due to the sharing of the wireless bandwidth among ad hoc stations, medium access control (MAC) may rely on physical carrier sensing multiple access mechanism with collision avoidance (CSMA/CA) to determine the idle channel, such as in the IEEE 802.11 distributed coordination function (DCF).
Shared medium: As mentioned in Section 3, in wireless ad hoc networks, the medium is shared and, as a result, TCP faces problems such as channel contention and unfairness.
Our results indicate that while the infrastructure-less access domain covers the typical requirements of simplicity and latency, to some extent, the decentralized nature of IEEE 802.11p imposes limitations on the reliability of the standard mainly originated from the ad hoc or uncoordinated medium access mechanism, severe congestion due to higher beaconing frequency, and higher vehicle mobility.
In [1], Baccelli et al. first proposed the local delay in mobile ad hoc networks with ALOHA medium access control (MAC) protocol.
For this reason, shipborne ad hoc networks (SANETs) and the medium access (MAC) protocol for SANETs,ad hoc self-organizing-time division multiple access (ASO-TDMA), have been proposed, which provide ocean-going ships with diverse data services cost-effectively.
We also repeated the same experiment for DSDV by assuming with results depicted in Table 2. Difference of in the estimated result over seconds is acceptable if we consider the dynamic nature of wireless medium in ad hoc networks.
In ad hoc networks, the collision avoidance medium access control (MAC) protocol allowing a single communication link at a time is not always beneficial, because it limits the utilization of the spatial resource.
The collection of papers in hand focuses on recent design, development, and cooperation among researchers coming from the fields of simulation, radio medium modeling, ad hoc networking, and wireless sensor networking.
Our goal is to develop techniques in order to enable the creation of small- and medium-scale ad hoc networks based on the spontaneity of both human interactions and relationships of trust.
