The IEEE 802.11 medium access control (MAC) protocol is a standard for wireless LANs, it is also widely used in almost all test beds and simulations for the research in wireless mobile multi-hop ad hoc networks. However, this protocol was not designed for multi-hop networks. Although it can support some ad hoc network architecture, it is not intended to support the wireless mobile ad hoc networ...

Group key agreement protocols for wired networks are not applicable in ad hoc networks because of the 1-hop assumption of these protocols and the dynamic, multi-hop attributes of ad hoc networks. An authenticated group key agreement for ad hoc networks is proposed which arranges the group members in a cluster-based hierarchical spanning tree structure. The scheme uses Intra-cluster group key ag...

Ad Hoc Networks are characterized by multi hop wireless connectivity, frequently changing network topology and the need for efficient dynamic routing protocols. In this project, we make a performance analysis of two of the protocols proposed for ad hoc networks using the extended ns-2 simulator Keywords— Ad Hoc Networks, Routing protocols, Global State Routing, Dynamic Source Routing

Over the last years research on wireless multi-hop networks has gained momentum. Wireless multi-hop networks come in many different flavors, all having their own characteristics, requirements and specific constraints. While ambiguous definitions of multi-hop networks are used in the literature, we believe that different types of multi-hop networks should be differentiated more clearly. With thi...

in wireless sensor networks, optimal consumptionof energy and having maximum life time are important factors. in this article attempt has been made to send the data packets with particular reliability from the beginning based on aodv protocol. in this way two new fields add to the routing packets and during routing and discovering of new routes, the lowest remained energy of nodes and route tra...

A wireless ad hoc network is a collection of radio devices (transceivers) located in a geographic region. Each node is equipped with an omnidirectional antenna and has limited transmission power. A communication session is established either through a single-hop radio transmission if the communication parties are close enough, or through relaying by intermediate devices otherwise. For this reas...

A HOP BY HOP ARCHITECTURE FOR MULTICAST TRANSPORT IN AD HOC WIRELESS NETWORKS

MIMO-based communications have great potential to improve network capacity for wireless ad hoc networks. Although there has been significant progress on MIMO at the physical layer or single-hop communication over the years, advances in the theory of MIMO for multi-hop ad hoc networks remain limited. This stagnation is mainly due to the lack of an accurate and more important, analytically tracta...

In the last decade a new paradigm in computer networks gained a lot of popularity, especially in the wireless network research community: mobile ad hoc networks. The main difference between this new and the existing conventional networking paradigm lies in the architecture of the network and the role of the different network components. In the conventional paradigm, a person with a computer con...