Architectural Framework for Large-Scale Multicast in Mobile Ad Hoc Networks

TL;DR

This paper introduces a scalable, robust, and efficient multicast architecture for large-scale mobile ad hoc networks, utilizing a hierarchical, geographic, and contact-based approach with novel address allocation and bootstrap mechanisms.

Contribution

It proposes a novel adaptive architecture with a self-configuring hierarchy, geographic multicast address allocation, and rendezvous regions for large-scale ad hoc networks, addressing scalability and robustness.

Findings

Supports large-scale ad hoc multicast with improved scalability

Enhances robustness through a contact-based hierarchy and stability metrics

Provides an efficient bootstrap mechanism for multicast services

Abstract

Emerging ad hoc networks are infrastructure-less networks consisting of wireless devices with various power constraints, capabilities and mobility characteristics. An essential capability in future ad hoc networks is the ability to provide scalable multicast services. This paper presents a novel adaptive architecture to support multicast services in large-scale wide-area ad hoc networks. Existing works on multicast in ad hoc networks address only small size networks. Our main design goals are scalability, robustness and efficiency. We propose a self-configuring hierarchy extending zone-based routing with the notion of contacts based on the small world graphs phenomenon and new metrics of stability and mobility. We introduce a new geographic-based multicast address allocation scheme coupled with adaptive anycast based on group popularity. Our scheme is the first of its kind and promises efficient and robust operation in the common case. Also, based on the new concept of rendezvous regions, we provide a bootstrap mechanism for the multicast service; a challenge generally ignored in previous work.