Dynamic QoS-Aware coalition formation

• Author(s): Nogueira, Luis ; Pinho, Luis Miguel
• Date: 2004
• Persistent ID: http://hdl.handle.net/10400.22/3486
• Origin: Repositório Científico do Instituto Politécnico do Porto
• Subject(s): Dynamic real-time systems; Quality of service; Resource management; Distributed systems; Ad-hoc networks
• Document Type: Report
• Language: English

Description

Users of wireless devices increasingly demand access to multimedia content with speci c quality of service requirements. Users might tolerate di erent levels of service, or could be satis ed with di erent quality combinations choices. However, multimedia processing introduces heavy resource requirements on the client side. Our work tries to address the growing demand on resources and performance requirements, by allowing wireless nodes to cooperate with each other to meet resource allocation requests and handle stringent constraints, opportunistically taking advantage of the local ad-hoc network that is created spontaneously, as nodes move in range of each other, forming a temporary coalition for service execution. Coalition formation is necessary when a single node cannot execute a speci c service, but it may also be bene cial when groups perform more e ciently when compared to a single s node performance.