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Transient fault recovery is important in processor availability. However, significant silicon or performance over-heads are characteristics of existing techniques. We uncover an opportunity to reduce the overheads dramatically in modern processors that appears as a side-effect of introducing hardware multithreading to improve performance. We observe that threads are usually short code sequences with...
In RFID systems, some readers will suffer from RF interference, which can lead to reader collision. Consequently, an anti-collision algorithm based on distributed power control (DPC) scheme was proposed as a solution for the problem in this paper. The proposed algorithm dynamically adjusts power output of a RFID reader based on the signal-to-interference ratio (SIR) of RFID reader receiver, minimizes...
This paper proposes a bit loading algorithm for orthogonal frequency division multiplexing (OFDM) systems. With the restrictions of available transmit power and required bit-error-rate (BER) performance, the algorithm aims at achieving the maximal data rate. Although the proposed algorithm is based on the Hughes-hartogs algorithm, the computational complexity is only O(k × M), where k denotes the...
It is commonly believed that there is a gap between the channel capacity and the highest achievable rate of equiprobable uniform constellation. To achieve shaping gain, non-uniform constellation following a Gaussian distribution has been designed for the AWGN channel and discussed widely along with Turbo codes. In this paper, we investigate the effect of non-uniform constellation and propose a scheme...
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