Interference-Aware Radio Resource Management for Cognitive High-Throughput Satellite Systems

Area of Science:

• Wireless Communications
• Satellite Engineering
• Cognitive Radio

Background:

• Multi-beam satellite systems are crucial for providing broadband to areas lacking terrestrial infrastructure.
• Future wireless communications demand terabit throughput, necessitating advanced satellite solutions.

Purpose of the Study:

• To introduce a cognitive radio-based high-throughput satellite (HTS) system architecture.
• To address radio resource management challenges in cognitive HTS systems, focusing on interference mitigation.

Main Methods:

• Full frequency reuse among beams in the HTS architecture.
• Analysis of intra-system and inter-system co-channel interference.
• Development of a generic interference-aware resource management framework based on joint spatial division and multiplexing (JSDM).
• Implementation of user grouping and two-stage precoding.

Main Results:

• The proposed JSDM framework effectively combats interference with low overhead.
• Joint spatial division and multiplexing significantly improves overall system throughput.
• The cognitive HTS architecture demonstrates potential for terabit throughput.

Conclusions:

• The cognitive HTS system with JSDM offers a viable solution for high-throughput satellite communications.
• Effective radio resource management is key to overcoming interference challenges in these systems.
• Future research should explore further optimization and deployment strategies.