Conclusion: seven main features of wireless Ad-hoc Networks

In the previous article, we introduced the basic knowledge of wireless Ad-hoc Networks, which is mainly applicable to small local wireless networks built in the home. The following describes the features of the wireless Ad-hoc network. We hope that this article will give you a comprehensive understanding of the advantages of this network.

A wireless Ad-hoc network is an autonomous system composed of mobile hosts. Its main features are as follows:

(1) network autonomy

Compared with conventional communication networks, wireless Ad hoc networks have no need for existing information infrastructure at any time and anywhere. This is also a form of personal communication.

(2) dynamic topology

Nodes have any mobility. In addition, the rapid change of wireless transmission conditions also results in the need to change the network topology in an unpredictable way.

(3) bandwidth limit and changed link capacity

The wireless Ad-hoc network uses wireless transmission technology as the underlying communication method, which has a lower capacity than the wired channel. In addition, due to multiple factors such as multi-channel access, multi-path fading, noise, and signal interference, so that the actual bandwidth of the mobile node is less than the theoretical maximum bandwidth value.

(4) energy limit nodes

Mobile nodes rely on batteries to provide the energy needed for work. Reducing power consumption is a very important factor affecting network protocol design.

(5) multi-hop communication

Due to the limited Signal Transmission range of the wireless transceiver, the Ad hoc network must support multi-hop communication. This multi-hop communication also brings about problems such as hidden terminals, exposed terminals, and fairness.

(6) Distributed Control

User nodes in a wireless Ad-hoc network have both independent routing and host functions. There is no central control point in the network, and the status between user nodes is equal. network routing protocols usually adopt distributed control, therefore, it has strong robustness and destructiveness. In a conventional communication network, user terminals are not in the same status as base stations, network control centers, or routers because of a type of centralized control equipment.

(7) limited security

Generally, mobile wireless networks are more vulnerable to security threats than wired networks due to wireless channels, limited power supply, and distributed control. These security attacks include eavesdropping, electronic spoofing, and denial of service.