Outage Performance of Cross-Packet HARQ

Jiahui Feng; Zheng Shi; Guanghua Yang; Nikolaos I. Miridakis; Shaodan Ma; Theodoros A. Tsiftsis

doi:10.1109/LWC.2022.3172441

Outage Performance of Cross-Packet HARQ

Jiahui Feng, Zheng Shi, Guanghua Yang, Nikolaos I. Miridakis, Shaodan Ma, Theodoros A. Tsiftsis

Research output: Journal Publication › Article › peer-review

5 Citations (Scopus)

Abstract

As opposed to hybrid automatic repeat request with incremental redundancy (HARQ-IR) that all the resources are occupied to resend the redundant information, cross-packet HARQ (XP-HARQ) allows the introduction of new information into retransmissions to substantially exploit the remaining resources. This letter provides a profound investigation into the outage performance of XP-HARQ. In particular, the exact outage expression of XP-HARQ is derived if the maximum number of transmissions is two, and tight outage bounds are obtained for more than two transmissions. Moreover, the asymptotic outage analysis of XP-HARQ in the high signal-to-noise ratio (SNR) regime is carried out not only to simplify the outage expression, but also to show that full time diversity is achievable by XP-HARQ. The simulation results are eventually presented for verifications.

Original language	English
Pages (from-to)	1423-1427
Number of pages	5
Journal	IEEE Wireless Communications Letters
Volume	11
Issue number	7
DOIs	https://doi.org/10.1109/LWC.2022.3172441
Publication status	Published - 1 Jul 2022
Externally published	Yes

Keywords

Cross-packet hybrid automatic repeat request (XP-HARQ)
diversity order
HARQ-IR
outage probability

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

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10.1109/LWC.2022.3172441

Cite this

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title = "Outage Performance of Cross-Packet HARQ",

abstract = "As opposed to hybrid automatic repeat request with incremental redundancy (HARQ-IR) that all the resources are occupied to resend the redundant information, cross-packet HARQ (XP-HARQ) allows the introduction of new information into retransmissions to substantially exploit the remaining resources. This letter provides a profound investigation into the outage performance of XP-HARQ. In particular, the exact outage expression of XP-HARQ is derived if the maximum number of transmissions is two, and tight outage bounds are obtained for more than two transmissions. Moreover, the asymptotic outage analysis of XP-HARQ in the high signal-to-noise ratio (SNR) regime is carried out not only to simplify the outage expression, but also to show that full time diversity is achievable by XP-HARQ. The simulation results are eventually presented for verifications.",

keywords = "Cross-packet hybrid automatic repeat request (XP-HARQ), diversity order, HARQ-IR, outage probability",

author = "Jiahui Feng and Zheng Shi and Guanghua Yang and Miridakis, \{Nikolaos I.\} and Shaodan Ma and Tsiftsis, \{Theodoros A.\}",

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doi = "10.1109/LWC.2022.3172441",

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T1 - Outage Performance of Cross-Packet HARQ

AU - Feng, Jiahui

AU - Shi, Zheng

AU - Yang, Guanghua

AU - Miridakis, Nikolaos I.

AU - Ma, Shaodan

AU - Tsiftsis, Theodoros A.

PY - 2022/7/1

Y1 - 2022/7/1

N2 - As opposed to hybrid automatic repeat request with incremental redundancy (HARQ-IR) that all the resources are occupied to resend the redundant information, cross-packet HARQ (XP-HARQ) allows the introduction of new information into retransmissions to substantially exploit the remaining resources. This letter provides a profound investigation into the outage performance of XP-HARQ. In particular, the exact outage expression of XP-HARQ is derived if the maximum number of transmissions is two, and tight outage bounds are obtained for more than two transmissions. Moreover, the asymptotic outage analysis of XP-HARQ in the high signal-to-noise ratio (SNR) regime is carried out not only to simplify the outage expression, but also to show that full time diversity is achievable by XP-HARQ. The simulation results are eventually presented for verifications.

AB - As opposed to hybrid automatic repeat request with incremental redundancy (HARQ-IR) that all the resources are occupied to resend the redundant information, cross-packet HARQ (XP-HARQ) allows the introduction of new information into retransmissions to substantially exploit the remaining resources. This letter provides a profound investigation into the outage performance of XP-HARQ. In particular, the exact outage expression of XP-HARQ is derived if the maximum number of transmissions is two, and tight outage bounds are obtained for more than two transmissions. Moreover, the asymptotic outage analysis of XP-HARQ in the high signal-to-noise ratio (SNR) regime is carried out not only to simplify the outage expression, but also to show that full time diversity is achievable by XP-HARQ. The simulation results are eventually presented for verifications.

KW - Cross-packet hybrid automatic repeat request (XP-HARQ)

KW - diversity order

KW - HARQ-IR

KW - outage probability

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Outage Performance of Cross-Packet HARQ

Abstract

Keywords

ASJC Scopus subject areas

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