Inter-Transmitter Distance-Based Guard Time Control Scheme in Airborne Tactical TDMA Networks with Long Propagation Delay

Abstract

Airborne tactical networks is used to air-to-air or air-to-ground operation and have a large propagation delay.All nodes share the data by using TDMA-based broadcasting. In airborne tactical networks, each time slot needs the guard time to ensure the broadcasting because the collisions occur due to the large propagation delay.However, the channel utilization of the networks can be greatly degraded due to the waste of guard time. In this paper, we propose Inter-Transmitter Distance-Based TDMA (ID-TDMA) scheme which ensures the broadcasting while improving the channel utilization by reducing the guard time with the inter-transmitter distance information.The proposed scheme shows the effectiveness through the performance evaluation.※ 본 연구는 지식경제부 및 정보통신산업진흥원의 대학 IT연구센터 지원사업의 연구결과로 수행되었음.