Title | URLLC Performance Under Outdated Channel State Information and Generalised-Rician Fading |
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ID_Doc | 44817 |
Authors | Le, K |
Title | URLLC Performance Under Outdated Channel State Information and Generalised-Rician Fading |
Year | 2021 |
Published | Ieee Transactions On Vehicular Technology, 70, 11 |
Abstract | Under ultra-reliable and low-latency communications (URLLC) for modern and future wireless networks, this work studies block-length-error probability (BLE) over an outdated-channel-state-information (oCSI) relay network deploying maximal ratio combining. Impact of finite-blocklength regimes on hybrid-automatic-repeat-request protocols with a finite pilot length is also studied. The network is operating under a generalised-Rician fading environment, which covers both line-of-sight (LoS) and non-LoS. The BLE is computed as a function of a bandwidth, payload, an oCSI coefficient, a diversity order and LoS power. Reliability-latency trade-off and effects of other parameters to URLLC performance are examined and discussed. Impact of system incoherence on URLLC performance will also be studied. |
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