Below Cross-Layer: An Alternative Approach to Service Discovery for MANETs

Abstract

Abstract. Service discovery protocols for mobile ad hoc networks attempt to overcome the inability to locate resources presented by networks in which prior knowledge of node identity and capability is not available. Existing approaches continue to rely on underlying address-based routing protocols in order to communicate with discovered services. These two-tier approaches generate routing overheads which negatively impact on performance and network scalability. As high-powered mobile computing devices with wireless connectivity become increasingly ubiquitous, the need for routing protocols which can operate at increased network densities becomes more acute. Cross-layer approaches to service discovery in MANETs have attempted to optimize the discovery process through direct integration with underlying routing protocols, however additional steps are necessary to improve service discovery performance, network scalability and application throughput. This paper describes the Service Discovery and Routing Protocol (SDRP), a novel service-oriented routing protocol for MANETs. This protocol eschews the use of network-wide unique addresses or underlying addressbased routing protocols and focuses instead on routing only to and from nodes which provide services. A comparison with existing approaches demonstrates that this approach improves discovery success rates and application throughput at higher node densities.

A Framework for Integrating the Distributed Hash Table (DHT) with an Enhanced Bloom’s Filter in Manet

“…A different methodology for the detection of service for MANETs was presented in which the protocols [9] of the service discovery efforts to overwhelm the incapability to abode the assets located at the network in which the node identity, its preceding knowledge, and also its ability is not accessible. The cross-layer approaches for the identification of service in MANET have been obtained to improve the procedure of discovery by the direct incorporation of the routing protocols.…”

Solution for packet reordering in manet’s using cross layer based routing protocol

“…All the layers of the protocol stack run separately and the data is shared only among the adjacent layers of the protocol stack. This protocol stack approach is not suitable for MANETs, as there is an explicit dependency between the physical layer and the upper layers [5][6][7]. The Cross Layer approach allows the dynamic interchange of data between different protocol layers [7].…”