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Effective Capacity for Renewal Service Processes with Applications to HARQ Systems
Shi,Zheng1; Tsiftsis,Theodoros A.1; Tan,Weiqiang2; Yang,Guanghua1; Ma,Shaodan3; Alouini,Mohamed Slim4
Source PublicationIEEE Transactions on Communications

Considering the widespread use of effective capacity in cross-layer design and the extensive existence of renewal service processes in communication networks, this paper thoroughly investigates the effective capacity for renewal processes. Exact expressions of the effective capacity at a given quality of service (QoS) exponent are derived for the renewal processes with either constant or variable reward. The simple expressions reveal meaningful insights, such as the monotonicity and bounds of the effective capacity. The analytical results are then applied to evaluate the cross-layer throughput for diverse hybrid automatic repeat request (HARQ) systems, including fixed-rate HARQ (FR-HARQ, e.g., Type I HARQ, HARQ with chase combining (HARQ-CC) and HARQ with incremental redundancy (HARQ-IR)), variable-rate HARQ (VR-HARQ), and cross-packet HARQ (XP-HARQ). Furthermore, aiming at maximizing the effective capacity via the optimal rate selection, it is disclosed that the VR-HARQ and XP-HARQ attain almost the same performance, and both of them perform better than FR-HARQ. In contrast, most of the prior outcomes approximate the effective capacity with the lack of insightful discussions that hampers the optimal design of HARQ systems. Finally, the numerical results corroborate the analytical ones.

KeywordEffective Capacity Hybrid Automatic Repeat Request Qos Exponent Renewal Process
URLView the original
Indexed BySCIE
WOS Research AreaEngineering ; Telecommunications
WOS IDWOS:000487048400047
Scopus ID2-s2.0-85077445092
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Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Science and Technology
Corresponding AuthorYang,Guanghua
Affiliation1.Jinan University,Zhuhai
2.Guangzhou University
3.University of Macau
4.King Abdullah University of Science and Technology
Recommended Citation
GB/T 7714
Shi,Zheng,Tsiftsis,Theodoros A.,Tan,Weiqiang,et al. Effective Capacity for Renewal Service Processes with Applications to HARQ Systems[J]. IEEE Transactions on Communications,2019,67(9):6556-6571.
APA Shi,Zheng,Tsiftsis,Theodoros A.,Tan,Weiqiang,Yang,Guanghua,Ma,Shaodan,&Alouini,Mohamed Slim.(2019).Effective Capacity for Renewal Service Processes with Applications to HARQ Systems.IEEE Transactions on Communications,67(9),6556-6571.
MLA Shi,Zheng,et al."Effective Capacity for Renewal Service Processes with Applications to HARQ Systems".IEEE Transactions on Communications 67.9(2019):6556-6571.
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