Spatial Analysis of Opportunistic Downlink Relaying in a Two-Hop Cellular System
| Autor: | Martin Haenggi, Radha Krishna Ganti |
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| Rok vydání: | 2009 |
| Předmět: |
Mobile radio
FOS: Computer and information sciences Computer science Cellular telephone systems Computer Science - Information Theory Base stations Data_CODINGANDINFORMATIONTHEORY law.invention Base station location Computer Science - Networking and Internet Architecture Methodology (stat.ME) Base station Mathematical frameworks Relay law Node location Telecommunications link Mobile nodes Computer Science::Networking and Internet Architecture Fading Stochastic geometry Electrical and Electronic Engineering Point process Statistics - Methodology Computer Science::Information Theory Networking and Internet Architecture (cs.NI) business.industry Dead spot Information Theory (cs.IT) ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Spatial analysis Relay control systems Mobile station Opportunistic downlink relaying Opportunistic relaying Cellular system Cellular arrays Relaying schemes Communications satellite Mobile telephony business Computer network Communication channel |
| DOI: | 10.48550/arxiv.0911.2948 |
| Popis: | We consider a two-hop cellular system in which the mobile nodes help the base station by relaying information to the dead spots. While two-hop cellular schemes have been analyzed previously, the distribution of the node locations has not been explicitly taken into account. In this paper, we model the node locations of the base stations and the mobile stations as a point process on the plane and then analyze the performance of two different two-hop schemes in the downlink. In one scheme the node nearest to the destination that has decoded information from the base station in the first hop is used as the relay. In the second scheme the node with the best channel to the relay that received information in the first hop acts as a relay. In both these schemes we obtain the success probability of the two hop scheme, accounting for the interference from all other cells. We use tools from stochastic geometry and point process theory to analyze the two hop schemes. Besides the results obtained a main contribution of the paper is to introduce a mathematical framework that can be used to analyze arbitrary relaying schemes. Some of the main contributions of this paper are the analytical techniques introduced for the inclusion of the spatial locations of the nodes into the mathematical analysis. Comment: Submitted to IEEE Transactions on Communications |
| Databáze: | OpenAIRE |
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