TY - GEN
T1 - A High-Throughput Scheduler based on Multipath-State Machine in Wireless Networks
AU - Zhang, Xiaoya
AU - Zhang, Yuyang
AU - Dong, Ping
AU - Du, Xiaojiang
AU - Zhang, Hongke
AU - Guizan, Mohsen
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Multipath transmission is an important solution in 6G wireless networks to improve communication resource convergence among heterogeneous networks. The appearance of out-of-order (OFO) packets is a problem in multipath transmission, especially in heterogeneous wireless networks, where network states fluctuate frequently. Existing schedulers attempt to solve the OFO problem by designing an 'in-order' strategy. However, these 'in-order' strategies lose their roles in jittered networks, resulting in poor throughput performance. In this study, we propose a novel packet scheduling strategy, called a multipath-state machine (MSM) scheduler. MSM prioritizes improving throughput utilization over ensuring packets arrive in order. Based on whether links are fully utilized, MSM divides link utilization states into 5 phases, including establishment, idle, busy, congestion, and risk. MSM prefers underutilized links. Furthermore, MSM chooses the one with the shortest transmission delay when multiple paths are in the same utilization state. Experiments show that MSM provides a more stable and higher bandwidth utilization than typical algorithms in various networks with heterogeneous characteristics such as delay, bandwidth, and jitter.
AB - Multipath transmission is an important solution in 6G wireless networks to improve communication resource convergence among heterogeneous networks. The appearance of out-of-order (OFO) packets is a problem in multipath transmission, especially in heterogeneous wireless networks, where network states fluctuate frequently. Existing schedulers attempt to solve the OFO problem by designing an 'in-order' strategy. However, these 'in-order' strategies lose their roles in jittered networks, resulting in poor throughput performance. In this study, we propose a novel packet scheduling strategy, called a multipath-state machine (MSM) scheduler. MSM prioritizes improving throughput utilization over ensuring packets arrive in order. Based on whether links are fully utilized, MSM divides link utilization states into 5 phases, including establishment, idle, busy, congestion, and risk. MSM prefers underutilized links. Furthermore, MSM chooses the one with the shortest transmission delay when multiple paths are in the same utilization state. Experiments show that MSM provides a more stable and higher bandwidth utilization than typical algorithms in various networks with heterogeneous characteristics such as delay, bandwidth, and jitter.
KW - Bandwidth aggregation
KW - Heterogeneous Wireless Network
KW - Multipath Transmission
KW - Scheduler
UR - http://www.scopus.com/inward/record.url?scp=85178267076&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85178267076&partnerID=8YFLogxK
U2 - 10.1109/ICC45041.2023.10279427
DO - 10.1109/ICC45041.2023.10279427
M3 - Conference contribution
AN - SCOPUS:85178267076
T3 - IEEE International Conference on Communications
SP - 2406
EP - 2411
BT - ICC 2023 - IEEE International Conference on Communications
A2 - Zorzi, Michele
A2 - Tao, Meixia
A2 - Saad, Walid
T2 - 2023 IEEE International Conference on Communications, ICC 2023
Y2 - 28 May 2023 through 1 June 2023
ER -