Seamless N-screen Wireless MAC structure in Wireless U-health Systems

Abstract

In this paper, we propose a multimedia streaming scheme by using the proposed N-screen resource allocation and N-screen DRP Availability Information Element, for n-screen service in Wearable health-monitoring systems (WHMS) networks. The proposed scheme can improve throughput performance of WHMS Vital Video (WVV) applications. Also, proposed scheme can reduce WVV delay since it minimizes the multicast WVV data delivery process. Compared with the legacy WHMS system, the proposed streaming scheme is very simple and efficient as it does not require additional hardware. These merits make the proposed WHMS system extremely inexpensive to implement in hospital WHMS network and bio cloud-computing applications.

A Multimedia Streaming Scheme for N-Screen Services in Wearable Sensor-Based Systems for Health Monitoring

“…We designed the multiple WHMS network and simulated it for performance evaluation with WBAN medical/non-medical service parameters and WiMedia PHY/MAC parameters as in Tables 2, 3 and 4 [3][4][5][6][7][8][9][10]. In the simulation, the single WHMS network size is 2.5m*2.5m and three WHMSs are connected through the D-MAC and DRD functions.…”

“…The results are averaged over 500 simulation runs. The parameters used in the simulation are shown in Table 5 [6][7][8][9][10][11][12][13]. In this simulation, the data rate of host and device 106.6Mbps.…”

“…The WVR in the STB simultaneously starts to record the same program to a wirelessly connected external hard disk drive that is located in a closet next to the operating room. Assume the WVV source generates an MPEG-4 stream using Real-Time Transport Protocol (RTP) as transport, and Table 6 shows the token bucket TSPEC of the WVV stream [6][7][8]. In Figure 8, WVV throughput of WHMS device using the proposed WHMS system does not change regardless of the number of WHMS clients.…”

“…P2P streaming technology has the disadvantage that it uses the resource of user"s device and network, but it has the advantage that provides a better quality of service by reducing the server load and network costs. In addition, because the most P2P streaming technology measures user"s resource in advance, users do not interfere with the use of their devices [7,8]. Adaptive streaming technology checks the service environment such as available network bandwidth, the performance of the equipment, etc., and is the technology that transmits variable quality of image data to enable to provide a seamless service.…”

“…In recent years, as various kinds of smart devices such as smart phones are emerging, and the subject of communication such as M2M (Machine-toMachine) have expanded, services that target various devices reborn as a new convergence services through a continuing evolution [7,8]. N-screen service transmits the service content via a wired or wireless network.…”