Abstract
In the next-generation wireless communication systems, the local cooperation between different units may be deployed to satisfy communication requirements. In this case, the interference suppression between different units and the receiving performance improvement for each single unit should be considered. Multiple schemes have been utilized to solve these problems. However, these schemes ordinarily require sufficiently accurate information of channel, if this accuracy can not be maintained (e.g., channel estimation error can not be ignored), these schemes may not obtain the satisfactory performances. To overcome this disadvantage, in this paper, a novel scheme is proposed. The proposed scheme has several characteristics: (i) a low-complexity extra estimation is implemented to acquire more information of channel estimation error; (ii) with the help of channel estimation error information, each unit can separately execute a two-step process for interference suppression and receiving performance improvement; (iii) no exorbitant information interaction and high-overhead algorithm are needed between multiple units. Through characteristic analysis and numerical results, it is found the proposed scheme can achieve the satisfactory effect in the locally cooperative network.





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The research reported in this paper was supported by the Key Scientific Research Project of Colleges and Universities in Henan Province under grant no. 20A510006, the Ph.D. Programs Foundation of Henan University of Technology under grant no. 2018BS073, the Open Foundation of Key Laboratory of Grain Information Processing & Control, (Henan University of Technology), Ministry of Education under grant no. KFJJ-2020-115, the Key Science-Technology Project of Henan Province under grant no. 212102310296, and the Key Science-Technology Project of Henan Province under grant no. 212102210169.
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Xu, D., Cui, M. & Zhao, P. Interference Suppression and Receiving Performance Improvement for Local Cooperation with Channel Estimation Error. Mobile Netw Appl 27, 1734–1745 (2022). https://doi.org/10.1007/s11036-022-01927-5
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DOI: https://doi.org/10.1007/s11036-022-01927-5