Precoding Based Cross-Tier Interference Mitigation In Centralized-Ran
| Autor: | Salah Eddine Zegrar, Ahmet Enes Duranay, Huseyin Arslan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Radio access network
business.industry Computer science Cross-Tier Interference Precoding 020302 automobile design & engineering 020206 networking & telecommunications Throughput 02 engineering and technology Interference (wave propagation) 0203 mechanical engineering Control and Systems Engineering Power Control Telecommunications link 0202 electrical engineering electronic engineering information engineering Femtocell Centralized-RAN Macrocell Electrical and Electronic Engineering business Computer network Power control |
| Popis: | This letter considers a two-tier downlink interference problem as a case of study, where macrocell user equipment (UE) shares the same frequency band with femtocell UE and suffers from severe cross-tier interference. Power control is one of the spectrally-efficient techniques used to mitigate the interference. However, it harms femtocell users since the femto base station reduces the transmitted power. In this letter, a novel scheme is proposed to jointly suppress the interference on the macrocell users, and preserve the high data rates required by femtocell users under centralized radio access network. The analytical results well agreed with the conducted simulations, and showed the superiority of the proposed scheme in achieving higher throughput compared to existing schemes. |
| Databáze: | OpenAIRE |
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