Resource Allocation and IP Networking for Next Generation Military Satellite Communications System

Abstract

Korean military is developing the next generation military satellite communications system in order to achieve the requirements of future military satellite communication such as high speed, high capacity, survivability, all IP networking, and on-the-move. In this paper, we survey and analyze the research interests about optimal resource allocation and IP networking such as MF-TDMA, random access, satellite IP routing, and PEP. Conventional researches have focused on the increase in channel throughput and efficiency. In addition to these measurements, we consider heterogeneous satellite terminals, full mesh topology, distributed network, anti-jamming, and the like which are the special characteristics of the next generation military satellite communications system. Based on this, we present key research issues and evaluation on the issues by simulation.

High-Efficiency and Low-Complexity Spread Spectrum ALOHA for Machine-to-Machine Communications

“…The traffic type can be characterized by low volumes of data and dynamic occurrences from a large number of devices [2] . Under this traffic condition, random access (RA) is more robust than traditionally used demand assignment multiple access because RA has no control overhead to assign satellite resources to a specific user [3,4] .…”

Multiple Slot Reservation for Rapid Data Traffic Transmission in the Satellite Random Access Channel

“…신뢰도가 매우 낮다는 단점이 있다 [1] . 초기 랜덤 액세 스 기법인 Slotted ALOHA의 경우 최대 처리율이 0.36packets/slot으로 매우 낮아 데이터 전송 용도로는 사용하지 못하고 주로 초기 로그온 메시지의 전송 및 간헐적 트래픽의 전송을 위한 용도로만 사용하였다 [2] .…”