DMH-HARQ: Reliable and Open Latency-Constrained Wireless Transport Network
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
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2022
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| _version_ | 1866917178793525248 |
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| author | Han, Bin Sun, Muxia Zhu, Yao Sciancalepore, Vincenzo Habibi, Mohammad Asif Hu, Yulin Schmeink, Anke Li, Yan-Fu Schotten, Hans D. |
| author_facet | Han, Bin Sun, Muxia Zhu, Yao Sciancalepore, Vincenzo Habibi, Mohammad Asif Hu, Yulin Schmeink, Anke Li, Yan-Fu Schotten, Hans D. |
| contents | The extreme requirements for high reliability and low latency in the upcoming Sixth Generation (6G) wireless networks are challenging the design of multi-hop wireless transport networks. Inspired by the advent of the virtualization concept in the wireless networks design and openness paradigm as fostered by the Open-Radio Access Network (O-RAN) Alliance, we target a revolutionary resource allocation scheme to improve the overall transmission efficiency.
In this paper, we investigate the problem of automatic repeat request (ARQ) in multi-hop decode-and-forward (DF) relaying in the finite blocklength (FBL) regime, and propose a dynamic scheme of multi-hop hybrid ARQ (HARQ), which maximizes the end-to-end (E2E) communication reliability in the wireless transport network. We also propose an integer dynamic programming (DP) algorithm to efficiently solve the optimal Dynamic Multi-Hop HARQ (DMH-HARQ) strategy. Constrained within a certain time frame to accomplish E2E transmission, our proposed approach is proven to outperform the conventional listening-based cooperative ARQ, as well as any static HARQ strategy, regarding the E2E reliability. It is applicable without dependence on special delay constraint, and is particularly competitive for long-distance transport network with many hops. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_03602 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | DMH-HARQ: Reliable and Open Latency-Constrained Wireless Transport Network Han, Bin Sun, Muxia Zhu, Yao Sciancalepore, Vincenzo Habibi, Mohammad Asif Hu, Yulin Schmeink, Anke Li, Yan-Fu Schotten, Hans D. Information Theory The extreme requirements for high reliability and low latency in the upcoming Sixth Generation (6G) wireless networks are challenging the design of multi-hop wireless transport networks. Inspired by the advent of the virtualization concept in the wireless networks design and openness paradigm as fostered by the Open-Radio Access Network (O-RAN) Alliance, we target a revolutionary resource allocation scheme to improve the overall transmission efficiency. In this paper, we investigate the problem of automatic repeat request (ARQ) in multi-hop decode-and-forward (DF) relaying in the finite blocklength (FBL) regime, and propose a dynamic scheme of multi-hop hybrid ARQ (HARQ), which maximizes the end-to-end (E2E) communication reliability in the wireless transport network. We also propose an integer dynamic programming (DP) algorithm to efficiently solve the optimal Dynamic Multi-Hop HARQ (DMH-HARQ) strategy. Constrained within a certain time frame to accomplish E2E transmission, our proposed approach is proven to outperform the conventional listening-based cooperative ARQ, as well as any static HARQ strategy, regarding the E2E reliability. It is applicable without dependence on special delay constraint, and is particularly competitive for long-distance transport network with many hops. |
| title | DMH-HARQ: Reliable and Open Latency-Constrained Wireless Transport Network |
| topic | Information Theory |
| url | https://arxiv.org/abs/2212.03602 |