Device Power Saving With Time-Frequency Adaptation: Joint BWP-DRX Design With BWP Switching Delay Considered

IF 7.7 2区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Transactions on Mobile Computing Pub Date : 2025-03-04 DOI:10.1109/TMC.2025.3547978

Cheng-Wei Tsai;Kuang-Hsun Lin;Hung-Yu Wei

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引用次数: 0

Abstract

In today's ever-growing data traffic landscape, optimizing network power efficiency and performance has become crucial. Discontinuous Reception (DRX) and Bandwidth Parts (BWP) are two key technologies that fulfill this pursuit. DRX is a time-domain power-saving technology that allows user equipment (UE) to switch off their radio frequency module. BWP switching is a frequency domain operation that allows UE to operate on only partial bandwidth for power saving. Investigating the interaction and trade-off between DRX and BWP is a must to optimize network efficiency and enhance network performance. This work proposed a novel BWP-DRX joint mechanism and its analytical model that leverages the concept of “Detect time” with the consideration of BWP switching delay. The model reduces packet loss rate by 50%, packet delay by 36% and increases the energy efficiency rate by 50% when arrival rate is high with the trade-off of 12% power efficiency reduction when arrival rate is low compared to the model without Detect time. The influence of each parameter is further analyzed to reach the best network efficiency under different traffic conditions.

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具有时频自适应的器件节能：考虑BWP切换延迟的BWP- drx联合设计

在当今不断增长的数据流量环境中，优化网络功率效率和性能变得至关重要。不连续接收（DRX）和带宽部分（BWP）是实现这一目标的两项关键技术。DRX是一种时域节能技术，允许用户设备（UE）关闭其射频模块。BWP切换是一种频域操作，允许UE仅在部分带宽上运行以节省电力。研究DRX和BWP之间的交互和权衡是优化网络效率和提高网络性能的必要条件。本文提出了一种新的BWP- drx联合机制及其分析模型，该机制利用了考虑BWP切换延迟的“检测时间”概念。与没有检测时间的模型相比，该模型在到达率高时将丢包率降低50%，将数据包延迟降低36%，将能量效率提高50%，而在到达率低时将能量效率降低12%。进一步分析了各参数对网络效率的影响，以达到不同流量条件下的最佳网络效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Mobile Computing 工程技术-电信学

CiteScore

12.90

自引率

2.50%

发文量

403

审稿时长

6.6 months

期刊介绍： IEEE Transactions on Mobile Computing addresses key technical issues related to various aspects of mobile computing. This includes (a) architectures, (b) support services, (c) algorithm/protocol design and analysis, (d) mobile environments, (e) mobile communication systems, (f) applications, and (g) emerging technologies. Topics of interest span a wide range, covering aspects like mobile networks and hosts, mobility management, multimedia, operating system support, power management, online and mobile environments, security, scalability, reliability, and emerging technologies such as wearable computers, body area networks, and wireless sensor networks. The journal serves as a comprehensive platform for advancements in mobile computing research.