Simulation study of Differentiated Services model with fast handoff in all-IP wireless networks
Simulation study of Differentiated Services model with fast handoff in all-IP wireless networks
- Author(s): Minkook Kang ; Bongkyo Moon ; K.H. Aghvami
- DOI: 10.1049/cp:20030254
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- Author(s): Minkook Kang ; Bongkyo Moon ; K.H. Aghvami Source: 5th European Personal Mobile Communications Conference 2003, 2003 p. 242 – 245
- Conference: 5th European Personal Mobile Communications Conference 2003
- DOI: 10.1049/cp:20030254
- ISBN: 0 85296 753 5
- Location: Glasgow, UK
- Conference date: 22-25 April 2003
- Format: PDF
Future wireless networks are evolving to provide various real-time multimedia services to mobile users and need an adaptive wireless IP quality of service (QoS) framework. Present radio access networks (RAN) are bandwidth-limited and lack appropriate resource management mechanisms to satisfy fast handoff and provision for QoS, degrading the network performance. We examine bandwidth resource management using the Differentiated Service (DiffServ) mechanism to provision QoS guarantee. Three micro-mobility protocols and two QoS mechanisms are considered. Based on existing solutions, a DiffServ enabled micro-mobility domain is simulated using Network Simulator (NS2) and QoS guarantee is provisioned for each traffic class. DiffServ enabled/nonenabled micro-mobility domain performance comparison during handoff is presented. Furthermore, a dynamic resource allocation scheme is proposed for performance improvements. This work is then an effort to implement a working environment to improve the current challenges supporting both fast handoff and provision of QoS over IP-based RAN.
Inspec keywords: radio access networks; telecommunication traffic; telecommunication network management; mobile computing; Internet; quality of service; transport protocols; mobile radio; multimedia communication; bandwidth allocation
Subjects: Network management; Multimedia communications; Mobile radio systems; Protocols; Computer communications; Radio access systems
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