lte_snapshot.eps-OutdoorEnvironments创新.PDFVIP

Energy and Performance of Smartphone Radio Bundling in Outdoor Environments † † § § § ∗ Ana Nika, Yibo Zhu, Ning Ding, Abhilash Jindal, Y. Charlie Hu, Xia Zhou † Ben Y. Zhao and † Haitao Zheng † UC Santa Barbara, ∗ Dartmouth College, § Purdue University † {anika, yibo, ravenben, htzheng}@, ∗xia@, §{ding34,jindal0,ychu}@ ABSTRACT proved network performance, these factors make the concept of ra- Most of today’s mobile devices come equipped with both cellu- dio bundling both practical and highly appealing. lar LTE and WiFi wireless radios, making radio bundling (simul- A flow using radio bundling transfers data simultaneously over taneous data transfers over multiple interfaces) both appealing and multiple wireless networks [1, 2, 19, 25, 35, 26], and works best practical. Despite recent studies documenting the benefits of radio at locations where WiFi and LTE performance is comparable. To- bundling with MPTCP, many fundamental questions remain about day’s mobile data access is dominated by public or outdoor loca- potential gains from radio bundling, or the relationship between tions, where WiFi cannot match the performance of residential/pri- performance and energy consumption in these scenarios. vate environments due to range limitations and uncontrolled con- In this study, we seek to answer these questions using extensive tention between public WiFi users. Our own measurements across measurements to emp