Trade-Off Performances in Multiuser MIMO Networks with Quantized CSI Feedback


Ku, Ivan Chui Choon and Lee, Vei Hung and El-Saleh, Ayman A. and Le, Tuan Anh and Alias, Mohamad Yusoff (2020) Trade-Off Performances in Multiuser MIMO Networks with Quantized CSI Feedback. In: 2020 IEEE 5th International Symposium on Telecommunication Technologies (ISTT), 9 November 2020, Virtual Conference, Kuala Lumpur, Malaysia.

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Multiuser multiple-input multiple-output transmission is identified as one of the promising techniques to vastly increase the transmission rate especially in densely deployed networks where inter-user interference is a major issue. To achieve this, channel state information (CSI) is needed to ensure accurate precoder design at the transmitter in order to effectively mitigate inter-user interference. However, the CSI is usually estimated at the receiver and, after quantization, is sent back to the transmitter. The feedback of quantized CSI incurs additional overhead which then leads to trade-off performances between transmission rate and energy efficiency. We will analyze this trade-off and propose the economy efficiency metric as a potential tool to determine the best operating point when the network is jointly optimized using transmission rate and energy efficiency

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: feedback, interference suppression, MIMO communication, multiuser channels, precoding, quantisation (signal), adiofrequency interference, telecommunication power management, wireless channels
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 12 Oct 2021 05:12
Last Modified: 12 Oct 2021 07:37


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