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In this paper, we propose a new media access scheme based on the ARIB STD-T109 designed for ITS communications in order to improve the system performance. The proposed scheme is totally compatible with the conventional scheme corresponding to the ARIB STD-T109 and can reduce the required transmission period per frame and the frame collision rate. By focusing attention on a periodical frame transmission...
In this paper, we investigate local peak specific absorption rate (SAR) based on required communication performance for a wireless capsule endoscope at 400 MHz medical implant communication service (MICS) band. First, in order to calculate the bit error rate (BER) performance under this implant propagation channel and derive the required transmit power to secure a permissible BER, we perform finite-difference...
Traffic congestion on major roadways costs our nation billions of dollars in lost earnings, wasted fuel consumption, injury and loss of human life. Providing motorists with real time roadway conditions is essential to mitigating traffic congestion. We propose a novel real-time messaging system that can be used to communicate imminent traffic conditions to motorists. Having such information can allow...
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