標題: Design and Implementation of LTE RRM With Switched LWA Policies
作者: Lin, Yi-Bing
Shih, Ying-Ju
Chao, Pei-Wen
資訊工程學系
Department of Computer Science
關鍵字: Data radio bearer (DRB);long-term evolution (LTE);LTE-WLAN aggregation (LWA);radio resource management (RRM);switched LWA
公開日期: 1-Feb-2018
摘要: LTE-WLAN aggregation (LWA) combines the radio resources of LTE and WLAN, which takes the advantage of WiFi's high availability and indoor coverage to provide better usage of both WLAN and LTE. In this mechanism, it is essential that the network should intelligently switch a data radio bearer (DRB) to utilize either LTE or Wi-Fi. This paper implements the radio resource management layer (RRM) for LWA and proposes two types of the switched LWA policies: the guaranteed bandwidth and the equal sharing policies. We measure the delay times of the LWA procedures, which indicate that the switched LWA policies can be implemented at the RRM with negligible overhead. We conduct emulation, simulation, and analytic analysis to evaluate the performance of the switched LWA policies. The beauty of the LWA policies is that the performance is not affected by the DRB holding time distribution. Our study indicates that switched LWA can effectively reduce the blocking probability of the LWA's DRBs.
URI: http://dx.doi.org/10.1109/TVT.2017.2751063
http://hdl.handle.net/11536/144562
ISSN: 0018-9545
DOI: 10.1109/TVT.2017.2751063
期刊: IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
Volume: 67
起始頁: 1053
結束頁: 1062
Appears in Collections:Articles