Channel-Adaptive Random Access With Discontinuous Channel Measurements
- Authors
- Moon, Hichan
- Issue Date
- May-2016
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Random access; channel measurement; low power communication; Internet of Things (IoT)
- Citation
- IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, v.34, no.5, pp.1704 - 1712
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
- Volume
- 34
- Number
- 5
- Start Page
- 1704
- End Page
- 1712
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/23117
- DOI
- 10.1109/JSAC.2016.2551562
- ISSN
- 0733-8716
- Abstract
- Channel-adaptive random access is proposed to reduce the required transmission power for random access in TDD-based wireless systems. With channel-adaptive random access, a remote station measures the channel state of the downlink, estimates the channel state of the corresponding uplink based on the downlink measurement, and transmits a random access packet only when the channel satisfies a predetermined transmission condition. Thus, transmission is delayed until the channel satisfies the transmission condition. With conventional channel-adaptive random access, a remote station continuously measures the channel state to check if the channel satisfies the transmission condition, which consumes a large amount of power. In this paper, we propose a discontinuous channel measurement scheme for channel-adaptive random access to reduce the power consumption. The performance of the proposed method is investigated in terms of the detection performance of a random access packet, transmission delay, and the power consumption of the receiver.
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