TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
Time Shifted Pilot Signal Transmission With Pilot Hopping To Improve The Uplink Performance of Massive MIMO System For Next Generation Network |
| 영문제목(English Title) |
Time Shifted Pilot Signal Transmission With Pilot Hopping To Improve The Uplink Performance of Massive MIMO System For Next Generation Network |
| 저자(Author) |
Amrita Ruperee
Shikha Nema
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| 원문수록처(Citation) |
VOL 13 NO. 09 PP. 4390 ~ 4407 (2019. 09) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
The paucity of pilot signals in Massive MIMO system is a vital issue. To accommodate substantial number of users, pilot signals are reused. This leads to interference, resulting in pilot contamination and degrades channel estimation at the Base Station (BS). Hence, mitigation of pilot contamination is exigency in Massive MIMO system. The proposed Time Shifted Pilot Signal Transmission with Pilot signal Hopping (TSPTPH), addresses the pilot contamination issue by transmitting pilot signals in non-overlapping time interval with hopping of pilot signals in each transmission slot. Hopping is carried by switching user to new a pilot signal in each transmission slot, resulting in random change of interfering users. This contributes to the change in channel coefficient, which leads to improved channel estimation at the BS and therefore enhances the efficiency of Massive MIMO system. In this system, Uplink Signal Power to Interference plus Noise Power Ratio (SINR) and data-rate are calculated for pilot signal reuse factor 1 and 3, by estimating the channel with Least Square estimation. The proposed system also reduces the uplink Signal power for data transmission of each User Equipment for normalized spectral efficiency with rising number of antennas at the BS and thus improves battery life.
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| 키워드(Keyword) |
Channel estimation
Hopping
Pilot contamination
Pilot signal
Signal ower to Interference plus Noise Power Ratio
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| 파일첨부 |
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