Peer-to-Peer Overlay in Mobile Ad-hoc Networks

Abstract

Wireless multi-hop networks such as mobile ad-hoc (MANET) or wireless mesh networks (WMN) have attracted big research efforts during the last years as they have huge potential in several areas such as military communications, fast infrastructure replacement during emergency operations, extension of hotspots or as an alternative communication system. Due to various reasons, such as characteristics of wireless links, multi-hop forwarding operation, and mobility of nodes, performance of traditional peer-to-peer applications is rather low in such networks. In this book chapter, we provide a comprehensive and in-depth survey on recent research on various approaches to provide peer-to-peer services in wireless multi-hop networks. The causes and problems for low performance of traditional approaches are discussed. Various representative alternative approaches to couple interactions between the peer-to-peer overlay and the network layer are examined and compared. Some open questions are discussed to stimulate further research in this area.

An energy-efficient scheduling scheme for time-constrained tasks in local mobile clouds

“…However, it is not clear how each source node can obtain the real-time resource information from the participating nodes to maximize the offloading benefit. Within the field of local mobile clouds, there are, broadly, two different approaches to discover the nearby resource information: reactive and proactive schemes [25]. Reactive discovery schemes as in [27] request other nodes' information when needed, causing small resource discovery overheads but longer reaction time.…”

Cross-layer approach in P2PSIP MANETs

“…Within the wireless network scenario the authors of [10] proposed an integration of the SIP services with a cluster based ad hoc routing and subsequent enhancements such as the IEEE 802.11 MAC Layer to support them. [4] gives a detailed comparison of some cross-layer approaches that are used for P2P MANETs such as Virtual Ring Routing and Scalable Source routing protocol which integrates the P2P DHT functionality within the network layer routing. In addition, MADPastry and Meshchord uses cluster creation and location-aware IDs as a form of pushing the P2P functionality to the network layer in an integrated fashion, whilst Mobileman [5] and crossroad [6] makes use of a vertical database similar to BFI.…”

Mobile Online Gaming via Resource Sharing

“…• Overlay management. We already mentioned that in a MANET, nodes operate as both end hosts and routers, forwarding packets wirelessly towards other mobile nodes that may not be within the direct transmission range of each other [5]. Thus, routing strategies are needed which are able to adapt depending on the availability and position of nodes.…”

“…The task of generating and managing the overlay mesh can be performed by resorting to one among the plethora of proposals that manage mesh overlays in a MANET. Examples are works presented in [4,5,19,25].…”