提出一种无线体域网(WBAN,wireless body area network)的网络拓扑结构设计方案。该方案针对IEEE802.15.6标准的2跳扩展星型拓扑结构,建立基于混合整数非线性规划的能耗成本优化模型,通过调整中继节点的位置和数量,以及数据到汇聚节点...提出一种无线体域网(WBAN,wireless body area network)的网络拓扑结构设计方案。该方案针对IEEE802.15.6标准的2跳扩展星型拓扑结构,建立基于混合整数非线性规划的能耗成本优化模型,通过调整中继节点的位置和数量,以及数据到汇聚节点的路由,获得优化的网络拓扑结构。实验结果分析表明,与Elias提出的EAWD(energy aware WBAN design)模型相比,所提出的方案能使网络能耗减少40.5%,网络时延平均降低52.4%,网络寿命提高了一倍。展开更多
In this paper,we present a maximum likelihood(ML) based time synchronization algorithm for Wireless Body Area Networks(WBAN).The proposed technique takes advantage of soft information retrieved from the soft demapper ...In this paper,we present a maximum likelihood(ML) based time synchronization algorithm for Wireless Body Area Networks(WBAN).The proposed technique takes advantage of soft information retrieved from the soft demapper for the time delay estimation.This algorithm has a low complexity and is adapted to the frame structure specified by the IEEE 802.15.6standard[1]for the narrowband systems.Simulation results have shown good performance which approach the theoretical mean square error limit bound represented by the Cramer Rao Bound(CRB).展开更多
The field of Wireless Sensor Networks (WSNs) has revolutionized tremendously in the recent past with its major application in Wireless Body Area Networks (WBANs). This has in the same dimension attracted immense inter...The field of Wireless Sensor Networks (WSNs) has revolutionized tremendously in the recent past with its major application in Wireless Body Area Networks (WBANs). This has in the same dimension attracted immense interests from the researchers and technology providers. The operational modality of the WBANs is that a few sensor nodes are placed in or around the body and that they are meant to operate within a limited condition while providing high performance in terms of WBAN life time, high throughput, high data reliability, minimum or no delay and low power consumption. As most of the WBAN operates within the universal Industrial, Scientific and Medical (ISM) Narrow Band (NB) wireless band (2.4 Ghz) frequency band, this has posed a challenge in respect to inter, intra and co-channel interference especially in dense areas and high mobility scenarios. As well the body posture changes dynamically due to these mobility effects. In this paper, we propose a hybrid WBAN interference mitigation model based on Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) Contention Window (CW) approach and User Priority (UP) queues. Using Omnet++ simulation, a comparison to the IEEE 802.15.6 based WBAN protocol is presented under the standing, walking sitting and Lying postural mobility scenarios. The results show that the proposed hybrid model outperforms IEEE 802.15.6 based CSMA/CA protocol in areas of network throughput, bandwidth efficiency and network delay in these mobility postures.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
文摘提出一种无线体域网(WBAN,wireless body area network)的网络拓扑结构设计方案。该方案针对IEEE802.15.6标准的2跳扩展星型拓扑结构,建立基于混合整数非线性规划的能耗成本优化模型,通过调整中继节点的位置和数量,以及数据到汇聚节点的路由,获得优化的网络拓扑结构。实验结果分析表明,与Elias提出的EAWD(energy aware WBAN design)模型相比,所提出的方案能使网络能耗减少40.5%,网络时延平均降低52.4%,网络寿命提高了一倍。
基金supported by the franco-chinese NSFC-ANR program under the Greencocom Project
文摘In this paper,we present a maximum likelihood(ML) based time synchronization algorithm for Wireless Body Area Networks(WBAN).The proposed technique takes advantage of soft information retrieved from the soft demapper for the time delay estimation.This algorithm has a low complexity and is adapted to the frame structure specified by the IEEE 802.15.6standard[1]for the narrowband systems.Simulation results have shown good performance which approach the theoretical mean square error limit bound represented by the Cramer Rao Bound(CRB).
文摘The field of Wireless Sensor Networks (WSNs) has revolutionized tremendously in the recent past with its major application in Wireless Body Area Networks (WBANs). This has in the same dimension attracted immense interests from the researchers and technology providers. The operational modality of the WBANs is that a few sensor nodes are placed in or around the body and that they are meant to operate within a limited condition while providing high performance in terms of WBAN life time, high throughput, high data reliability, minimum or no delay and low power consumption. As most of the WBAN operates within the universal Industrial, Scientific and Medical (ISM) Narrow Band (NB) wireless band (2.4 Ghz) frequency band, this has posed a challenge in respect to inter, intra and co-channel interference especially in dense areas and high mobility scenarios. As well the body posture changes dynamically due to these mobility effects. In this paper, we propose a hybrid WBAN interference mitigation model based on Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) Contention Window (CW) approach and User Priority (UP) queues. Using Omnet++ simulation, a comparison to the IEEE 802.15.6 based WBAN protocol is presented under the standing, walking sitting and Lying postural mobility scenarios. The results show that the proposed hybrid model outperforms IEEE 802.15.6 based CSMA/CA protocol in areas of network throughput, bandwidth efficiency and network delay in these mobility postures.
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!
