超密集网络导频复用干扰避免策略

doi:10.11959/j.issn.1000-436x.2020120

Abstract

Abstract:

In the ultra dense network (UDN),the pilot reuse scheme would produce significant interference,which will affect the accuracy of channel estimation.To solve this problem,an interference avoidance strategy for UDN with pilot reuse was proposed.An interference model of subcarriers for UDN was provided and the interference probability of subcarriers was derived.Then,based on the model,a pilot position selection model was proposed and an interference avoidance strategy for UDN with pilot reuse was provided.The simulation results show that compared with the traditional channel estimation algorithm,the channel estimation with proposed interference avoidance strategy can effectively avoid the interference and ensure the accuracy of channel estimation in UDN with pilot reuse.

Key words: ultra dense network, pilot reuse, interference avoidance, channel estimation

CLC Number:

TN929.5

Jie HUANG,Fan YANG,Yiwen GAO,Bowei ZHANG. Interference avoidance strategy for ultra dense network with pilot reuse[J]. Journal on Communications, 2020, 41(7): 165-171.

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References 17

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Interference avoidance strategy for ultra dense network with pilot reuse

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