IEEE 802.11ah is a new Wi-Fi standard for sub-1Ghz communications,aiming to address the challenges of the Internet of Things(IoT).Significant changes in the legacy 802.11 standards have been proposed to improve the ne...IEEE 802.11ah is a new Wi-Fi standard for sub-1Ghz communications,aiming to address the challenges of the Internet of Things(IoT).Significant changes in the legacy 802.11 standards have been proposed to improve the network performance in high contention scenarios,the most important of which is the Restricted Access Window(RAW)mechanism.This mechanism promises to increase the throughput and energy efficiency by dividing stations into different groups.Under this scheme,only the stations belonging to the same group may access the channel,which reduces the collision probability in dense scenarios.However,the standard does not define the RAW grouping strategy.In this paper,we develop a new mathematical model based on the renewal theory,which allows for tracking the number of transmissions within the limited RAW slot contention period defined by the standard.We then analyze and evaluate the performance of RAW mechanism.We also introduce a grouping scheme to organize the stations and channel access time into different groups within the RAW.Furthermore,we propose an algorithm to derive the RAW configuration parameters of a throughput maximizing grouping scheme.We additionally explore the impact of channel errors on the contention within the time-limited RAW slot and the overall RAW optimal configuration.The presented analytical framework can be applied to many other Wi-Fi standards that integrate periodic channel reservations.Extensive simulations using the MATLAB software validate the analytical model and prove the effectiveness of the proposed RAW configuration scheme.展开更多
2024年是“一带一路”倡议“下一个金色十年”的崭新起点,也是高质量共建“一带一路”八项行动的重要节点。推动科技创新作为八项行动的关键内容,为通用人工智能时代下世界各国现代化发展带来无限可能,为一带一路可持续发展目标实现注...2024年是“一带一路”倡议“下一个金色十年”的崭新起点,也是高质量共建“一带一路”八项行动的重要节点。推动科技创新作为八项行动的关键内容,为通用人工智能时代下世界各国现代化发展带来无限可能,为一带一路可持续发展目标实现注入强劲动能。为此,中国人工智能学会联合IEEE China Council发起主办2024 IEEE“一带一路”人工智能可持续发展大会,携手打造国际化交流平台,构建全球性共创模式,为一带一路高质量、可持续发展凝共识、集众智、聚合力、谋未来。展开更多
携手共赴金色十年壮阔新征程,合力共创智能时代可持续发展。2024年是“一带一路”倡议“下一个金色十年”的崭新起点,也是高质量共建“一带一路”八项行动的重要节点。推动科技创新作为“八项行动”的关键内容,为通用人工智能时代下世...携手共赴金色十年壮阔新征程,合力共创智能时代可持续发展。2024年是“一带一路”倡议“下一个金色十年”的崭新起点,也是高质量共建“一带一路”八项行动的重要节点。推动科技创新作为“八项行动”的关键内容,为通用人工智能时代下世界各国现代化发展带来无限可能,为一带一路可持续发展目标实现注入强劲动能。为此,中国人工智能学会联合IEEE China Council主办《2024 IEEE“一带一路”人工智能可持续发展大会》,携手打造国际化交流平台,构建全球性共创模式,为一带一路高质量、可持续发展凝共识、集众智、聚合力、谋未来。展开更多
近日,西安电子科技大学网络与信息安全学院马卓教授团队最新研究成果“Need for Speed:Taming Backdoor Attacks with Speed and Precision”被第45届国际信息安全会议IEEE Symposium on Security and Privacy(IEEE S&P2024)全文收...近日,西安电子科技大学网络与信息安全学院马卓教授团队最新研究成果“Need for Speed:Taming Backdoor Attacks with Speed and Precision”被第45届国际信息安全会议IEEE Symposium on Security and Privacy(IEEE S&P2024)全文收录。IEEE S&P又称Oakland,与ACM CCS、USENIX Security、NDSS并列称为安全领域的四大国际学术会议,其近十年的平均录用率约为13%,被中国计算机学会(CCF)认定为A类会议。该会议收录的论文代表着相关研究领域的前沿水平,在业界具有广泛而深远的影响。展开更多
为进一步推动女性科技工作者的影响力与贡献力,时值世界第114个国际劳动妇女节到来之际,IEEE PES WIP(IEEE PES Women in Power)联合《高电压技术》《高压电器》《湖北电力》,面向广大IEEE PES WIP会员征集关于“IEEE PES CHINA WIP高...为进一步推动女性科技工作者的影响力与贡献力,时值世界第114个国际劳动妇女节到来之际,IEEE PES WIP(IEEE PES Women in Power)联合《高电压技术》《高压电器》《湖北电力》,面向广大IEEE PES WIP会员征集关于“IEEE PES CHINA WIP高电压工程与新技术”专题的高水平科技论文。本专题拟于2024年下半年刊发,真诚欢迎广大IEEE PES WIP中国区会员联合国内外专家学者以及国家级科研计划承担单位踊跃投稿!展开更多
为进一步推动女性科技工作者的影响力与贡献力,时值世界第114个国际劳动妇女节到来之际,IEEE PES WIP(IEEE PES Women in Power)联合《高电压技术》《高压电器》《湖北电力》,面向广大IEEE PES WIP会员征集关于“IEEE PES CHINA WIP高...为进一步推动女性科技工作者的影响力与贡献力,时值世界第114个国际劳动妇女节到来之际,IEEE PES WIP(IEEE PES Women in Power)联合《高电压技术》《高压电器》《湖北电力》,面向广大IEEE PES WIP会员征集关于“IEEE PES CHINA WIP高电压工程与新技术”专题的高水平科技论文。本专题拟于2024年下半年刊发,真诚欢迎广大IEEE PES WIP中国区会员联合国内外专家学者以及国家级科研计划承担单位踊跃投稿!展开更多
October 25-27(Fri-Sun),2024 Hangzhou杭州,Hangzhou,China Call for Papers The 7th IEEE International Conference on Integrated Circuits,Technologies and Applications(ICTA 2024),will be held on October 25-27,2024 in Hangz...October 25-27(Fri-Sun),2024 Hangzhou杭州,Hangzhou,China Call for Papers The 7th IEEE International Conference on Integrated Circuits,Technologies and Applications(ICTA 2024),will be held on October 25-27,2024 in Hangzhou,China.This conference will be held in China to provide an international forum according to IEEE standard for the presentation and exchange of the latest technical achievements and cross-discipline fertilization of IC designs,technologies,and applications in our fast-changing society.This year's theme is“Chiplet and Future IDM”.展开更多
基金supported by the Spanish Ministry of Science,Education and Universities,the European Regional Development Fund and the State Research Agency,Grant No.RTI2018-098156-B-C52.
文摘IEEE 802.11ah is a new Wi-Fi standard for sub-1Ghz communications,aiming to address the challenges of the Internet of Things(IoT).Significant changes in the legacy 802.11 standards have been proposed to improve the network performance in high contention scenarios,the most important of which is the Restricted Access Window(RAW)mechanism.This mechanism promises to increase the throughput and energy efficiency by dividing stations into different groups.Under this scheme,only the stations belonging to the same group may access the channel,which reduces the collision probability in dense scenarios.However,the standard does not define the RAW grouping strategy.In this paper,we develop a new mathematical model based on the renewal theory,which allows for tracking the number of transmissions within the limited RAW slot contention period defined by the standard.We then analyze and evaluate the performance of RAW mechanism.We also introduce a grouping scheme to organize the stations and channel access time into different groups within the RAW.Furthermore,we propose an algorithm to derive the RAW configuration parameters of a throughput maximizing grouping scheme.We additionally explore the impact of channel errors on the contention within the time-limited RAW slot and the overall RAW optimal configuration.The presented analytical framework can be applied to many other Wi-Fi standards that integrate periodic channel reservations.Extensive simulations using the MATLAB software validate the analytical model and prove the effectiveness of the proposed RAW configuration scheme.
文摘2024年是“一带一路”倡议“下一个金色十年”的崭新起点,也是高质量共建“一带一路”八项行动的重要节点。推动科技创新作为八项行动的关键内容,为通用人工智能时代下世界各国现代化发展带来无限可能,为一带一路可持续发展目标实现注入强劲动能。为此,中国人工智能学会联合IEEE China Council发起主办2024 IEEE“一带一路”人工智能可持续发展大会,携手打造国际化交流平台,构建全球性共创模式,为一带一路高质量、可持续发展凝共识、集众智、聚合力、谋未来。
文摘携手共赴金色十年壮阔新征程,合力共创智能时代可持续发展。2024年是“一带一路”倡议“下一个金色十年”的崭新起点,也是高质量共建“一带一路”八项行动的重要节点。推动科技创新作为“八项行动”的关键内容,为通用人工智能时代下世界各国现代化发展带来无限可能,为一带一路可持续发展目标实现注入强劲动能。为此,中国人工智能学会联合IEEE China Council主办《2024 IEEE“一带一路”人工智能可持续发展大会》,携手打造国际化交流平台,构建全球性共创模式,为一带一路高质量、可持续发展凝共识、集众智、聚合力、谋未来。
文摘近日,西安电子科技大学网络与信息安全学院马卓教授团队最新研究成果“Need for Speed:Taming Backdoor Attacks with Speed and Precision”被第45届国际信息安全会议IEEE Symposium on Security and Privacy(IEEE S&P2024)全文收录。IEEE S&P又称Oakland,与ACM CCS、USENIX Security、NDSS并列称为安全领域的四大国际学术会议,其近十年的平均录用率约为13%,被中国计算机学会(CCF)认定为A类会议。该会议收录的论文代表着相关研究领域的前沿水平,在业界具有广泛而深远的影响。
文摘为进一步推动女性科技工作者的影响力与贡献力,时值世界第114个国际劳动妇女节到来之际,IEEE PES WIP(IEEE PES Women in Power)联合《高电压技术》《高压电器》《湖北电力》,面向广大IEEE PES WIP会员征集关于“IEEE PES CHINA WIP高电压工程与新技术”专题的高水平科技论文。本专题拟于2024年下半年刊发,真诚欢迎广大IEEE PES WIP中国区会员联合国内外专家学者以及国家级科研计划承担单位踊跃投稿!
文摘为进一步推动女性科技工作者的影响力与贡献力,时值世界第114个国际劳动妇女节到来之际,IEEE PES WIP(IEEE PES Women in Power)联合《高电压技术》《高压电器》《湖北电力》,面向广大IEEE PES WIP会员征集关于“IEEE PES CHINA WIP高电压工程与新技术”专题的高水平科技论文。本专题拟于2024年下半年刊发,真诚欢迎广大IEEE PES WIP中国区会员联合国内外专家学者以及国家级科研计划承担单位踊跃投稿!
文摘October 25-27(Fri-Sun),2024 Hangzhou杭州,Hangzhou,China Call for Papers The 7th IEEE International Conference on Integrated Circuits,Technologies and Applications(ICTA 2024),will be held on October 25-27,2024 in Hangzhou,China.This conference will be held in China to provide an international forum according to IEEE standard for the presentation and exchange of the latest technical achievements and cross-discipline fertilization of IC designs,technologies,and applications in our fast-changing society.This year's theme is“Chiplet and Future IDM”.
