Optimal D2D (Device to Device) relay position user access method based on energy efficiency
A technology of energy efficiency and access method, applied in the direction of reducing energy consumption, machine-to-machine/machine-type communication services, advanced technology, etc., can solve the problems of high communication signaling overhead, low transmission efficiency, large signal fading, etc. , to achieve the effect of reducing signaling overhead, good transmission performance, and low difficulty and complexity
Active Publication Date: 2019-02-22
KUNMING UNIV OF SCI & TECH
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[0004] The present invention provides an optimal D2D relay position user access method based on energy efficiency to solve the problems of large signal fading, poor access experience, low transmission efficiency and communication signaling overhead in user access in existing communications Larger issues
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Embodiment 1
[0041] Embodiment 1: as Figure 1-3 As shown, an energy efficiency-based optimal D2D relay location user access method, the specific steps of the energy efficiency-based optimal D2D relay location user access method are as follows:
[0042] Step1. Establish a relay set of D2D relays according to the established scene model; the communication scene model diagram is as follows figure 2 shown;
[0043] Step2. Use the optimal relay selection algorithm to select the optimal D2D relay from the relay set;
[0044] Step3, respectively calculate the energy efficiency of the user passing through the D2D relay mode and the energy efficiency of the user directly to the base station in the direct mode;
[0045] Step4, comparing the energy efficiencies of the two modes calculated in Step3;
[0046] If the energy efficiency in the relay mode is higher than that in the direct mode, select the relay mode for user access;
[0047] If the energy efficiency in the direct mode is higher than ...
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The invention relates to an optimal D2D (Device to Device) relay position user access method based on energy efficiency, and belongs to the technical field of wireless communication. The method comprises the following steps: firstly, building a relay set of D2D relays according to a built scene model; selecting an optimal D2D relay from the relay set by using an optimal relay selection algorithm;calculating the energy efficiency when a user passes by the D2D relay mode and the energy efficiency in a direct mode in which the user directly enters a base station; and comparing the calculated energy efficiencies in the two modes to realize different user access. A cross-layer optimization concept is adopted, and a lower-complexity user access method is provided with the target of energy efficiency. The positions of the D2D relays are determined firstly, the optimal D2D relay is found, and user access can be performed according to the energy efficiency and the transmission rate. As provedby verification, the algorithm can well balance the transmission performance of the users, so that the access experience of the users is improved effectively.
Description
technical field [0001] The invention relates to an energy efficiency-based optimal D2D relay location user access method, which belongs to the technical field of wireless communication. Background technique [0002] With the rapid development of communication technology, the requirements for communication are getting higher and higher. In different scenarios, there are also different requirements for communication. In today's increasingly scarce communication resources, improving the utilization rate and transmission rate of communication resources is a communication system. Due to the limitations of spectrum resources and energy resources, the transmission speed provided by traditional communication networks cannot meet the needs of users. Therefore, in recent years, experts and scholars at home and abroad have combined D2D (Device to Device) technology with cellular network combined. The combination of D2D technology and cellular network can effectively improve spectrum u...
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IPC IPC(8): H04W4/70H04W40/10H04W40/12H04W40/20H04W40/22
CPCH04W4/70H04W40/10H04W40/12H04W40/20H04W40/22Y02D30/70
Inventor 彭艺杨唐钢
Owner KUNMING UNIV OF SCI & TECH