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Method for optimizing energy efficiency based on stochastic geometry in coexistence of wireless body area networks

A wireless body area network and random geometry technology, which is applied in the direction of specific environment-based services, wireless communication, machine-to-machine/machine-type communication services, etc., can solve the problems of lack of coordination, limited spectrum resources, affecting the reliability of wireless communication, Issues such as energy efficiency and frequency effect to achieve the effect of improving energy efficiency

Inactive Publication Date: 2018-03-06
SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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Problems solved by technology

In general, one user corresponds to one wireless body area network. Due to the mobility of people, for example, in some public places such as centralized wards, nursing homes, supermarkets, etc., the density of body area network coexistence may become very high. Due to these random distribution There is a lack of coordination between independent wireless body area networks, and spectrum resources are limited. There is resource competition and mutual interference between mutual body area networks, which affects the reliability, energy efficiency and frequency efficiency of wireless communication.

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  • Method for optimizing energy efficiency based on stochastic geometry in coexistence of wireless body area networks
  • Method for optimizing energy efficiency based on stochastic geometry in coexistence of wireless body area networks
  • Method for optimizing energy efficiency based on stochastic geometry in coexistence of wireless body area networks

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Embodiment Construction

[0013] Attached below figure 1 The present invention will be further described.

[0014] An energy efficiency optimization method for wireless body area network coexistence based on random geometry, comprising the following steps:

[0015] a) Firstly, the Poisson point process (PPP) model is established by using the stochastic geometric method. Each WBAN is composed of a central node and multiple collection nodes, which is a star topology network structure. When multiple WBANs are together, a network coexistence is formed. Each WBAN is composed of a central node and n collection nodes, and forms a star topology network structure, according to the formula Calculate the mean value λ of n collection nodes in the bounded set G p Poisson distribution of |G|, where e is the natural base, |G| is the Lebesgue measure, λ p is the node distribution density. The channel attenuation model is: P t hd -η , h is the small-scale power fading factor, which obeys the exponential distribu...

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Abstract

The invention discloses a method for optimizing energy efficiency based on stochastic geometry in the coexistence of wireless body area networks. The method comprises the following steps: a) buildinga Poisson point process model by adopting a stochastic geometry method; b) calculating the probability density f(p) of transmission power of a node; c) calculating transmission success probability P<s>; and d) calculating energy efficiency etaEE of the node. A relationship between the transmission power and the energy efficiency in the coexistence of networks is analyzed, so that the energy efficiency of a system can be increased better in a wireless network coexistence design, and the aims of lowering interference and enhancing the network communication reliability are fulfilled.

Description

technical field [0001] The invention relates to the field of wireless body area network (WBAN), in particular to an energy efficiency optimization method for the coexistence of wireless body area network based on random geometry. Background technique [0002] In recent years, the process of population aging in China has been significantly accelerated. With the phenomenon of population aging becoming more and more serious, telemedicine services have gradually attracted people's attention. As the core technology of telemedicine services, wireless body area network is expected to improve the traditional medical model in terms of elderly care and health monitoring, and form a model of home care or community care for the aged. WBAN is a wireless network attached to the human body, which consists of a set of sensor nodes and a coordinator that monitor the corresponding physiological or physical parameters of the human body. In general, one user corresponds to one wireless body ar...

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Application Information

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IPC IPC(8): H04W4/38H04W4/70H04W4/80H04W52/24H04W52/28H04W24/06
CPCH04W24/06H04W52/243H04W52/285
Inventor 刘瑞霞舒明雷陈长芳魏诺杨明
Owner SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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