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High quality wireless audio transfer is essential for external digital audio products. There are two kinds of methods for transferring audio data. One is using proprietary RF channel and protocol for reliable audio transfer, the other is using preexisting 802.11 WiFi Network. Audio transfer via WiFi network is more general and preferred method compared to proprietary wireless transfer. But when WiFi...
Quality of Service (QoS) is usually provided in ad hoc networks using a class-based approach which, without dedicated security measures in place, paves the way to various abuses by selfish stations. Such actions include traffic remapping attacks (TRAs), which consist in claiming a higher traffic priority, i.e., false designation of the intrinsic traffic class so that it can be mapped onto a higher-priority...
In this paper, we propose a QoS control mechanism that estimates the congestion of wireless channels in the wireless LAN and evaluates the voice packet drop ratio based on the estimated congestion status. The mechanism adjusts the voice packet transmission rate according to the evaluated packet loss ratio, and thereby resolves the congestion situation. In this way, the mechanism can keep users' quality...
This paper proposes WEVCast, (Wireless Eavesdropping Video Casting) a new mechanism to overcome the performance obtained by wireless multicast transmission of video contents over standard Wi-Fi networks. We described this new strategy pointing out few specific features of our proposal such as the simplicity, the robustness and the extreme compatibility with all off-the-shelf wireless devices; in addition,...
Undergraduate courses for data communications and telecommunications cover services from a network technology perspective more so than they cover network technologies from a service perspective. Thus, critical issues such as interoperability and end-to-end system integration in support of new service and application ideas are left unexplored until post graduation, on-the-job training. Up until now,...
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