The task data have to be transmitted in sequence through user/human/machine, ONU, OLT, and the Internet. The computing services traditionally occur on the Internet. These four kinds of location, in order of the distance from users, are user/human/machine, ONU with MEC, OLT with MEC, and the Internet. This scenario forms the background of our work.Īs shown in Figure 2, four kinds of location are involved in the FiWi network scenario. Finally, some computing-centric tasks can be offloaded onto MEC for the tactile services. Note that multi-access edge computing (MEC) can be used on ONUs. The mesh portal point (MPP)-aided ONU (ONU-MPP), the mesh point (MP), and the mesh access point (MAP), are deployed to host IoT services in the third sub-network. The second sub-network is equipped with a based station (BS)-aided ONU (i.e., ONU-BS). This fixed method is not relevant to the main content of this work.
To provide fiber-to-the-home/building/road (FTTx) services to fixed subscribers, an ONU is located at subscriber communities (i.e., the first sub-network). In the wired fiber backhaul, a tree-like topology with the IEEE 802.3 ah/av 1/10 G passive optical network (PON) protocol that connects the central optical line terminal (OLT) to four optical network unites (ONUs) is adopted. The fiber-wireless (FiWi) network is one of them, as shown in Figure 1, which integrates the wired fiber backhaul and wireless fronthaul. Wire and wireless access networks are essential. He served as the chair of ACM SIGMOBILE between 20.The tactile internet involves enormous, wide-area-distributed sensors/machines. It also includes various award papers from conferences such as ACM MobiCom, ACM CoNEXT, and IEEE Dyspan. He has authored more than 100 technical papers in leading journals and conferences in the field, including the ACM/IEEE Transactions on Networking, the ACM/IEEE Transactions on Mobile Computing, ACM Sigcomm, ACM MobiCom, IEEE Infocom, ACM MobiSys, ACM CoNEXT, ACM IMC, IEEE Dyspan, and more. While at Wisconsin, he received the CAREER award from the US National Science Foundation and the inaugural Rockstar Award from ACM SIGMOBILE for early career achievements and contributions in his field. He is a professor in computer sciences with UW-Madison where he is the founding director of the WiNGS laboratory which broadly focuses on research in wireless and mobile networking systems. dissertation was the university’s nomination for the ACM Doctoral Dissertation Award. Suman Banerjee (Fellow IEEE/ACM) received the undergraduate degree from IIT Kanpur in computer science and engineering and was a gold medalist in his graduating class, and the MS and Ph.D. Moreover, we provide several implications on transport protocols and WiFi deployments to shed light on the use of such WiFi networks for V2I communication.
Our results indicate the feasibility of achieving 1 GB/hour application goodput, an order of magnitude higher than the number provided by open WiFi networks in the past, which can take a significant load away from alternative communication paths for V2I systems. To study the current landscape,we develop a system ( X-Fi), which efficiently selects, associates to, authenticates with, and performs WiFi offloading for V2I communication with these networks, and a tool ( X-Perf), which illustrates opportunities of WiFi offloading available today in these networks, with measurements and experiments across four metro areas across three continents over 22 months.
With the rollouts of provider-managed WiFi networks that are more structured and operate under authenticated regimes, WiFi offloading, or use of available (roadside) WiFi networks for V2I data communication, has different opportunities and challenges. This paper revisits the opportunities of using WiFi offloading for Vehicle to Internet (V2I) communication, and how this has changed over the last decade.
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