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Cooperation relay strategy of multisource and single relay system in wireless communication network

A technology of wireless communication network and relay system, which is applied in the field of cooperative relay strategy of multi-source single-relay system, and can solve the problem that contradiction cannot be effectively solved.

Active Publication Date: 2015-06-24
SOUTHEAST UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, due to the fixed limitations of the communication system in terms of wireless resource optimization and utilization, the contradiction between limited resources and rapidly growing business needs cannot be effectively resolved, and the resulting wireless communication bottleneck problem has become increasingly prominent

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  • Cooperation relay strategy of multisource and single relay system in wireless communication network
  • Cooperation relay strategy of multisource and single relay system in wireless communication network
  • Cooperation relay strategy of multisource and single relay system in wireless communication network

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] Such as figure 1 , there are two source nodes S in the system 1 and S 2 , respectively located at (-3m, 0m) and (3m, 0m); the destination node D is fixed at (0m, 8m); the relay node R is on y=4m, from x=-35m to x=35m move.

[0038] Step 1: For the two source nodes S in the system i , i∈{1,2} accepts the assistance of the relay node R and sends information to the destination node D in a cooperative process, and determines S i The receiving signal-to-noise ratio of which is:

[0039] SNR iD R = Q i | g iD | 2 + Q i P i ...

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Abstract

The invention provides a cooperation relay strategy based on an amplification and forward protocol for an asymmetric multisource (nodes)-single relay (node) cooperative system in a wireless communication network. System modeling is achieved for the seller market where demand exceeds supply, and non-cooperation gambling is developed between buyers. The cooperation relay strategy mainly comprises a price strategy and an allocation strategy of a relay node cooperation power resource and a source node relay selection strategy. The fairness between source nodes is taken into consideration in the price strategy, and meanwhile the relay node is effectively stimulated to participate in cooperation. In the distribution strategy, the nash equilibrium solution is obtained based on a distributed solving algorithm, accordingly, the allocation power value is determined, and the optimality of effectiveness of the source nodes is guaranteed. In the selection strategy, the standard about whether the source nodes participate in the relay or not is given from the optimality of the integral system performance.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, relates to a cooperative communication technology in an amplification and forwarding mode, and proposes a cooperative relay strategy of a multi-source single relay system in a wireless communication network. Background technique [0002] The morphological classification of wireless communication systems, from the perspective of network networking, can be summarized into two types of topologies that are currently most widely used: 1. Wireless Cellular Network (WCN), a network based on point-to-multipoint ( 2. Mobile Ad hoc Network (MANET), a mobile communication network that can be distributed and dynamically self-organized by independent nodes without fixed topology and infrastructure . [0003] In a traditional PMP network, the base station is the only resource allocation management, task coordination, and scheduling device in the network, while users, as managed devices, are alw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCY02D30/70
Inventor 衡伟龙芳梁天
Owner SOUTHEAST UNIV