Cooperative Coverage Extension in Land Mobile Satellite Networks
نویسندگان
چکیده
This chapter is dedicated to the application of cooperative relaying in heterogeneous land mobile satellite (LMS) systems. The aim of cooperation in this context is to help providing the missing coverage in harsh propagation environments characterized by a high node density such as urban areas. We study benefits and limits of the cooperative approach adopting a network model that is at the same time tractable and of practical interest. We derive an analytical lower bound on the coverage and show that there is a trade-off between this and the rate at which the information can be injected in the network. We also describe a possible implementation scheme for cooperative coverage extension in heterogeneous satellite LMS systems adopting the ETSI Digital Video Broadcasting Satellite services to Handheld (DVB-SH) standard in the space segment.
منابع مشابه
Satellite component of NGN: Integrated and hybrid networks
Future mobile networks are expected to involve systems that are based on different technologies, such as WiFi, WiMAX, 2G/3G/3G1, LTE, and satellite. To address this scenario, ITU has defined integrated and hybrid networks in the framework of Next-Generation Networks. The interest is to exploit the cooperation of different wireless communication systems (segments) to provide service to mobile us...
متن کاملRepresenting a Model for Improving Connectivity and Power Dissipation in Wireless Networks Using Mobile Sensors
Wireless sensor networks are often located in areas where access to them is difficult or dangerous. Today, in wireless sensor networks, cluster-based routing protocols by dividing sensor nodes into distinct clusters and selecting local head-clusters to combine and send information of each cluster to the base station and balanced energy consumption by network nodes, get the best performance ...
متن کاملRepresenting a Model for Improving Connectivity and Power Dissipation in Wireless Networks Using Mobile Sensors
Wireless sensor networks are often located in areas where access to them is difficult or dangerous. Today, in wireless sensor networks, cluster-based routing protocols by dividing sensor nodes into distinct clusters and selecting local head-clusters to combine and send information of each cluster to the base station and balanced energy consumption by network nodes, get the best performance ...
متن کاملCooperative Control of Mobile Robots in Creating a Runway Platform for Quadrotor Landing
Multi-agent systems are systems in which several agents accomplish a mission in a cooperative manner. In this paper, a novel idea for the construction of a movable runway platform based on multi-agent systems is presented. It is assumed that an aerial agent (quadrotor) decides to make an emergency landing due to reasons such as a decrease in energy level or technical failure, while there is no ...
متن کاملOutage Probability Evaluation of Land Mobile Satellite Cooperative Diversity Communication System
In this paper, a dual-hop cooperative diversity land mobile satellite system (LMSS) respectively adopted amplify-and-forward (AF), decode-and-forward (DF), and coded cooperation (CC) relaying protocols is proposed, and the outage probability behaviors of the three protocols have been analyzed. We use the signal to noise ratio (SNR) of each path to derive the closed-form expressions of outage pr...
متن کامل