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Inspired by our earlier work on automatic repeat request (ARQ) secrecy, we propose a simple, yet efficient, security overlay protocol to existing 802.11 networks. Our work targets networks secured by the wired equivalent privacy (WEP) protocol because of its widespread use and vulnerability to a multitude of security threats. By exploiting the existing ARQ protocol in the 802.11 standard, our proposed...
In this paper, the delay limited secrecy capacity of the flat fading channel is investigated under two different assumptions on the available transmitter channel state information (CSI). The first scenario assumes perfect prior knowledge of both the main and eavesdropper channel gains. Here, upper and lower bounds on the secure delay limited capacity are derived and shown to be tight in the high signal-to-noise...
The flexibly of the multiuser detection in wireless receivers is an important consideration for communication system. But with the increasing number of customers, the receiver architecture in the base stations transceiver should also be configurable according to the number of users and channels per user. Hence, the receiver architecture should be able to meet varying needs such as scalability, flexibly...
The receiver architecture in the third generation communication systems should be configurable according to the number of channels and codes per users. Additionally, the receiver architecture should support high bit rates. To achieve this goal, different RAKE architectures have been designed for this propose. In this paper, we propose a parallel multi-path architecture for the CodeRAKE receiver. It...
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