QoS-Aware Maximally Disjoint Routing in Power-Controlled Multihop CDMA Wireless Ad Hoc Networks

Nội dung tài liệu:

This paper proposes a joint power control and maximally disjoint routing algorithm for multihop CDMA wireless ad hoc networks. It introduces a framework for power control with Quality of Service (QoS) constraints and identifies its feasibility conditions. Both centralized and distributed implementations are derived to calculate transmission power based on required throughput and transmitting nodes. The proposed scheme integrates power control and maximally disjoint routing to handle data traffic with a minimum rate constraint, while prioritizing energy efficiency and network longevity. To ensure reliable end-to-end data delivery, the scheme is enhanced with a dynamic traffic switching mechanism to address node mobility or failure. Simulation results confirm the effectiveness of the proposed approach.

The research addresses challenges in wireless ad hoc networks, including protocol design for routing, medium access control, and mobility management, emphasizing the integration of these aspects for improved network performance. It also highlights the importance of energy efficiency and QoS support, particularly “soft QoS” for multimedia applications.

The study focuses on CDMA wireless ad hoc networks, leveraging their capability for multiple concurrent transmissions. Power control is utilized to manage transmission range and maintain network connectivity, while also serving as a tool for interference management in CDMA systems. The paper emphasizes the interdependence of power control and routing, as transmission power influences network topology and thus routing decisions.

Mục lục chi tiết:

• 1. INTRODUCTION
• 2. RELATED WORK
• 3. POWER CONTROL FRAMEWORK AND POWER-CONTROLLED CONNECTIVITY
• 4. PROPOSED POWER-AWARE MAXIMALLY DISJOINT ROUTING
• 5. DYNAMIC TRAFFIC SWITCHING
• 6. PERFORMANCE EVALUATION
• 7. CONCLUSIONS
• APPENDIX
• REFERENCES