With the increasing development of communication technology, ultra-dense network (UDN) becomes to be the key technology in the fifth generation (5G) communication. More and more small cells appear in the UDN, which leads to serious interference to harm network performance. To solve this problem, this paper proposes a novel scheme with clustered priority-based user-centered interference coordination (CPUCIC). User performance is improved with base station collaboration and interference nulling in the respective cluster area. Numerical results show that related performances with CPUCIC scheme can be improved with respect to signal to interference plus noise ratio (SINR) and spectrum efficiency (SE). Furthermore, its performance improvement is greater than bandwidth cost in most cases, which metrics is user bandwidth gain-to-loss ratio (UBGLR).
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This work was supported in part by the National Natural Science Foundation of China (No.61701168,61832005,and 61571303), the Fundamental Research Funds for the Central Universities(No.2014B33114).And we thank Lei Chen for his valueable suggestions for our revision work.
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Wu, G., Tan, G., Jiang, D. et al. User-Centered Interference Coordination in the Ultra-Dense Network: a Cluster and Priority Perspective. Mobile Netw Appl 26, 1195–1205 (2021). https://doi.org/10.1007/s11036-019-01346-z
- Ultra dense network
- Inter-cell interference coordination
- Base Station cooperation
- Interference nulling