Abstract
Power line communication (PLC) is an attractive approach to provide information transfer services for the smart grid. A crucial issue in PLC networks is how to achieve reliable transmission for rural and remote users against severe fading and impulsive noise in an economic way. To address this problem, we propose a cache-enabled multiple-input and multiple-output (MIMO) PLC network to improve transmission reliability and minimize downloading cost for users. First, we deploy a local cache at each PLC access unit to store popular content requested by users according to a popularity-based data placement. As such, the proposed cache-enabled scheme can not only bring popular data close to users at the edge of PLC networks but also reduce the PLC backhaul burden. Second, in the data delivery stage, we propose a precoding design for each access unit and formulate average downloading price for each user. In particular, we solve optimal precoding vectors to simultaneously meet the target transmission rate and minimize the price of each user through an efficient algorithm. Numerical results corroborate that our cache-enabled MIMO PLC network can guarantee the transmission reliability whilst reducing the downloading price compared with the existing related works.
| Original language | English |
|---|---|
| Journal | IEEE Transactions on Green Communications and Networking |
| DOIs | |
| Publication status | Accepted/In press - 1 Jan 2019 |
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Keywords
- Array signal processing
- average downloading price.
- cache
- Internet
- MIMO
- MIMO communication
- power line communications
- Precoding
- precoding design
- Reliability
- Smart grid
- Smart grids
- Wireless communication
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Computer Networks and Communications
Cite this
Cache-Enabled MIMO Power Line Communications with Precoding Design in Smart Grid. / Qian, Yuwen; Li, Shi; Shi, Long; Li, Jun; Shu, Feng; Jayakody, Dushantha Nalin K.; Yuan, Jinhong.
In: IEEE Transactions on Green Communications and Networking, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cache-Enabled MIMO Power Line Communications with Precoding Design in Smart Grid
AU - Qian, Yuwen
AU - Li, Shi
AU - Shi, Long
AU - Li, Jun
AU - Shu, Feng
AU - Jayakody, Dushantha Nalin K.
AU - Yuan, Jinhong
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Power line communication (PLC) is an attractive approach to provide information transfer services for the smart grid. A crucial issue in PLC networks is how to achieve reliable transmission for rural and remote users against severe fading and impulsive noise in an economic way. To address this problem, we propose a cache-enabled multiple-input and multiple-output (MIMO) PLC network to improve transmission reliability and minimize downloading cost for users. First, we deploy a local cache at each PLC access unit to store popular content requested by users according to a popularity-based data placement. As such, the proposed cache-enabled scheme can not only bring popular data close to users at the edge of PLC networks but also reduce the PLC backhaul burden. Second, in the data delivery stage, we propose a precoding design for each access unit and formulate average downloading price for each user. In particular, we solve optimal precoding vectors to simultaneously meet the target transmission rate and minimize the price of each user through an efficient algorithm. Numerical results corroborate that our cache-enabled MIMO PLC network can guarantee the transmission reliability whilst reducing the downloading price compared with the existing related works.
AB - Power line communication (PLC) is an attractive approach to provide information transfer services for the smart grid. A crucial issue in PLC networks is how to achieve reliable transmission for rural and remote users against severe fading and impulsive noise in an economic way. To address this problem, we propose a cache-enabled multiple-input and multiple-output (MIMO) PLC network to improve transmission reliability and minimize downloading cost for users. First, we deploy a local cache at each PLC access unit to store popular content requested by users according to a popularity-based data placement. As such, the proposed cache-enabled scheme can not only bring popular data close to users at the edge of PLC networks but also reduce the PLC backhaul burden. Second, in the data delivery stage, we propose a precoding design for each access unit and formulate average downloading price for each user. In particular, we solve optimal precoding vectors to simultaneously meet the target transmission rate and minimize the price of each user through an efficient algorithm. Numerical results corroborate that our cache-enabled MIMO PLC network can guarantee the transmission reliability whilst reducing the downloading price compared with the existing related works.
KW - Array signal processing
KW - average downloading price.
KW - cache
KW - Internet
KW - MIMO
KW - MIMO communication
KW - power line communications
KW - Precoding
KW - precoding design
KW - Reliability
KW - Smart grid
KW - Smart grids
KW - Wireless communication
UR - http://www.scopus.com/inward/record.url?scp=85073708921&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85073708921&partnerID=8YFLogxK
U2 - 10.1109/TGCN.2019.2947773
DO - 10.1109/TGCN.2019.2947773
M3 - Article
AN - SCOPUS:85073708921
JO - IEEE Transactions on Green Communications and Networking
JF - IEEE Transactions on Green Communications and Networking
SN - 2473-2400
ER -