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- Title
Blind Channel Estimation of Relaying Cooperative Communication in IoT Systems.
- Authors
Xiaoqiang Zhong
- Abstract
In Internet of Things (IOT) systems, Radio Frequency Identification (RFID) tags are limited by size, costs and hardware complex. Relaying cooperative communication allows for energy saving through diversity gains, which can diminish the per-node energy consumption and increase network lifetime. However, channel state information (CSI) is always unknown and must depend on the channel estimation techniques to get. We propose a kind of framework batch blind channel estimation methods for the relay cooperative communication of IoT systems. We propose a cost function, including a modified Reduced Constellation Algorithm( RCA ) error function term and adopt iterative reweighed least square(IRLS) algorithm to solve the optimization problem. The simulation results show that the proposed blind channel estimation method can estimate the CSI correctly without any training sequence and achieves a fast blind estimation of the channel only rely on small batch vector size.
- Subjects
BLIND channel identification (Telecommunications); ESTIMATION theory; WIRELESS cooperative communication; INTERNET of things; RADIO frequency identification systems; ENERGY consumption
- Publication
International Review on Computers & Software, 2012, Vol 7, Issue 1, p450
- ISSN
1828-6003
- Publication type
Article