{"title":"Resource Allocation for Dynamic TDD-Enabled Integrated Sensing and Communication Systems","authors":"Chen Zhong;Hui Ding;Dabiao Li;Lan Tang;Ying-chang Liang","doi":"10.1109/TVT.2025.3541268","DOIUrl":null,"url":null,"abstract":"In this paper, we investigate a dynamic time division duplex (DTDD) enabled integrated sensing and communication (ISAC) system, in which access points (APs) mode, bandwidth and transmit power can be flexibly configured. To obtain the best tradeoff between communication and sensing performance, we maximize the sum of downlink (DL) and uplink (UL) transmission rates under the constraints of Cramer-Rao lower bound (CRLB) and the maximal transmit power by jointly optimizing the power/subcarrier allocation and APs mode selection. To deal with the proposed nonconvex problem, we adopt the alternating optimization (AO) method to divide the original problem into two subproblems. The first subproblem is related to power/subcarriers allocation, which is equivalently transformed into a Semidefinite Programming (SDP) problem and eventually solved by the penalized convex-concave procedure (PCCP) method. The second subproblem is a quadratic integer problem related to APs mode selection, which is transformed into a convex quadratic integer problem that can be efficiently solved by the convex optimization toolbox. The numerical results demonstrate the tradeoff between the total transmission rate and sensing performance with different parameter configurations. Compared with existing schemes, our proposed scheme has significant advantages in terms of tradeoff performance.","PeriodicalId":13421,"journal":{"name":"IEEE Transactions on Vehicular Technology","volume":"74 6","pages":"9357-9369"},"PeriodicalIF":7.1000,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Vehicular Technology","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10884055/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we investigate a dynamic time division duplex (DTDD) enabled integrated sensing and communication (ISAC) system, in which access points (APs) mode, bandwidth and transmit power can be flexibly configured. To obtain the best tradeoff between communication and sensing performance, we maximize the sum of downlink (DL) and uplink (UL) transmission rates under the constraints of Cramer-Rao lower bound (CRLB) and the maximal transmit power by jointly optimizing the power/subcarrier allocation and APs mode selection. To deal with the proposed nonconvex problem, we adopt the alternating optimization (AO) method to divide the original problem into two subproblems. The first subproblem is related to power/subcarriers allocation, which is equivalently transformed into a Semidefinite Programming (SDP) problem and eventually solved by the penalized convex-concave procedure (PCCP) method. The second subproblem is a quadratic integer problem related to APs mode selection, which is transformed into a convex quadratic integer problem that can be efficiently solved by the convex optimization toolbox. The numerical results demonstrate the tradeoff between the total transmission rate and sensing performance with different parameter configurations. Compared with existing schemes, our proposed scheme has significant advantages in terms of tradeoff performance.
期刊介绍：
The scope of the Transactions is threefold (which was approved by the IEEE Periodicals Committee in 1967) and is published on the journal website as follows: Communications: The use of mobile radio on land, sea, and air, including cellular radio, two-way radio, and one-way radio, with applications to dispatch and control vehicles, mobile radiotelephone, radio paging, and status monitoring and reporting. Related areas include spectrum usage, component radio equipment such as cavities and antennas, compute control for radio systems, digital modulation and transmission techniques, mobile radio circuit design, radio propagation for vehicular communications, effects of ignition noise and radio frequency interference, and consideration of the vehicle as part of the radio operating environment. Transportation Systems: The use of electronic technology for the control of ground transportation systems including, but not limited to, traffic aid systems; traffic control systems; automatic vehicle identification, location, and monitoring systems; automated transport systems, with single and multiple vehicle control; and moving walkways or people-movers. Vehicular Electronics: The use of electronic or electrical components and systems for control, propulsion, or auxiliary functions, including but not limited to, electronic controls for engineer, drive train, convenience, safety, and other vehicle systems; sensors, actuators, and microprocessors for onboard use; electronic fuel control systems; vehicle electrical components and systems collision avoidance systems; electromagnetic compatibility in the vehicle environment; and electric vehicles and controls.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
