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Due to advanced process technologies the decreasing distance between wires has led to significant bus interferences that introduce crosstalk delay and noise. We first propose two encoding schemes, namely DUCE and GASIE, that can reduce crosstalk delay and noise on the bus lines. The DUCE scheme is a temporal encoding so it needs no additional bits to implement. It can be easily used in existing systems...
As technology scales, inductive crosstalk becomes prominent along with capacitive crosstalk, and it is creating a significant bottleneck in high-speed deep sub-micron and nanoscale integrated circuits. For inductive coupling, worst-case delay occurs when all the bus lines simultaneously switch in the same direction. This switching case is the best case switching pattern for capacitive-dominant on-chip...
In this paper, we provide a saturation throughput analysis of the IEEE 802.11 protocol at the data link layer by including the impact of both transmission channel and capture effects in Rayleigh fading environment. Impacts of both non-ideal channel and capture effects, specially in an environment of high interference, become important in terms of the actual observed throughput. As far as the 4-way...
Some communication applications, like multimedia, deliver data of different importance classes allowing unequal error protection (UEP) levels. In this paper, a multiple-input multiple-output (MIMO) system using orthogonal frequency division multiplexing (OFDM) is considered with a new UEP bit-loading algorithm based on the non-UEP algorithm by Chow, Cioffi, and Bingham. In the proposed bit-loading...
Three applications in wireless networks where model-free stochastic learning is applicable, are discussed. The learning based optimization problems are formulated and simulation results are presented. Some open issues are also discussed.
In this paper, we propose a cross-layer optimization approach that exploits retransmission diversity in wireless CDMA communications. Conventionally, data packets that are not correctly detected are usually dropped. These dropped packets can be used to help data packet detection. By exploiting all the retransmitted packets, data packets can be correctly detected with higher probability. The proposed...
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