用户业务种类与日俱增,且对4G/5G网络的心理预期高,期盼更好的用户体验,对网络的要求也日益提高。为了满足用户的高需求,亟须完善用户级移动网络感知评价模型。提出基于常驻地维度和业务感知维度的用户级感知优化模型。设计感知评估的模...用户业务种类与日俱增,且对4G/5G网络的心理预期高,期盼更好的用户体验,对网络的要求也日益提高。为了满足用户的高需求,亟须完善用户级移动网络感知评价模型。提出基于常驻地维度和业务感知维度的用户级感知优化模型。设计感知评估的模型,包括全量用户评估和VIP客户评估;采用用户级的测量报告(measurement report,MR)覆盖率、长期演进语音承载(voice over longˉterm evolution,VoLTE)感知相关指标等,建立用户级的感知模型,实现用户级移动网络感知提升。在网络优化中应用该模型,可以挖掘质差用户的感知数据,通过优化手段提高用户在移动网络中的实际感知。展开更多
Ambient Assisted Living(AAL) is becoming an important research field. Many technologies have emerged related with pervasive computing vision, which can give support for AAL. One of the most reliable approaches is base...Ambient Assisted Living(AAL) is becoming an important research field. Many technologies have emerged related with pervasive computing vision, which can give support for AAL. One of the most reliable approaches is based on wireless sensor networks(WSNs). In this paper, we propose a coverage-aware unequal clustering protocol with load separation(CUCPLS) for data gathering of AAL applications based on WSNs. Firstly, the coverage overlap factor for nodes is introduced that accounts for the degree of target nodes covered. In addition, to balance the intra-cluster and inter-cluster energy consumptions, different competition radiuses of CHs are computed theoretically in different rings, and smaller clusters are formed near the sink. Moreover, two CHs are selected in each cluster for load separation to alleviate the substantial energy consumption difference between a single CH and its member nodes. Furthermore, a backoff waiting time is adopted during the selection of the two CHs to reduce the number of control messages employed. Simulation results demonstrate that the CUCPLS not only can achieve better coverage performance, but also balance the energy consumption of a network and prolong network lifetime.展开更多
文摘用户业务种类与日俱增,且对4G/5G网络的心理预期高,期盼更好的用户体验,对网络的要求也日益提高。为了满足用户的高需求,亟须完善用户级移动网络感知评价模型。提出基于常驻地维度和业务感知维度的用户级感知优化模型。设计感知评估的模型,包括全量用户评估和VIP客户评估;采用用户级的测量报告(measurement report,MR)覆盖率、长期演进语音承载(voice over longˉterm evolution,VoLTE)感知相关指标等,建立用户级的感知模型,实现用户级移动网络感知提升。在网络优化中应用该模型,可以挖掘质差用户的感知数据,通过优化手段提高用户在移动网络中的实际感知。
基金supported by the National Nature Science Foundation of China (61170169, 61170168)
文摘Ambient Assisted Living(AAL) is becoming an important research field. Many technologies have emerged related with pervasive computing vision, which can give support for AAL. One of the most reliable approaches is based on wireless sensor networks(WSNs). In this paper, we propose a coverage-aware unequal clustering protocol with load separation(CUCPLS) for data gathering of AAL applications based on WSNs. Firstly, the coverage overlap factor for nodes is introduced that accounts for the degree of target nodes covered. In addition, to balance the intra-cluster and inter-cluster energy consumptions, different competition radiuses of CHs are computed theoretically in different rings, and smaller clusters are formed near the sink. Moreover, two CHs are selected in each cluster for load separation to alleviate the substantial energy consumption difference between a single CH and its member nodes. Furthermore, a backoff waiting time is adopted during the selection of the two CHs to reduce the number of control messages employed. Simulation results demonstrate that the CUCPLS not only can achieve better coverage performance, but also balance the energy consumption of a network and prolong network lifetime.
