These include the time-dependent SNR observations of individual CRAHN users due to the fading and shadowing effects in the licensed channels, the necessity of fusion mechanisms for accurate decisions, and the difficulties depending on multi-hop deployment.
In this paper, as a sample network model, we utilize the network model in [19, 21] (in alignment with [16, 24]), which is based on experimentation and analysis of multi-hop 802.11 network deployments where all the nodes in the network are in the same contention neighborhood.
In short, deployment of multi-hop wireless technologies will surely transform our daily life with innovative applications having greater impact.
Underground communications present unique signal propagation characteristics due to the geographic and geological features, which in turn impact the underground network deployment and multi-hop routing patterns.
Recently, the introduction of new standards such as Bluetooth, IEEE 802.11 and Hyperlan makes possible the deployment of multi-hop ad hoc networks for commercial purposes.
Furthermore, by adopting a reasonably communication range, the biggest connected component has the feature of location dependency, which is very useful to roadside infrastructure deployment and multi-hop packet forwarding.
For coverage extension and throughput enhancement, the IEEE 802.16j task group has developed a novel multi-hop relay network architecture to enable typical IEEE 802.16 networks to achieve data transmission between base stations and mobile stations via a multi-hop path with relay stations deployment.
WMN is a kind of wireless multi-hop radio network, whose promotion and deployment depend heavily on security issues relative to cable network and WLAN [2].
The bounding box (b. box) of node t, created using approximated distances to anchors (only 1-hop and 2-hop) as constraints [33], represents the region of the deployment area where the node t is localized.
The effect of load control on network throughput and delay in multi-hop scenarios is likely to depend on deployment strategies for WSN coverage and connectivity [45].
Based on the pass-loss fading channel environment, two fusion rules with Binary Transmission (BT) and without Binary Transmission (NBT) are derived to evaluate the performance of the two graphical deployment strategies in a multi-hop RSN.
