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We propose and experimentally demonstrate a hierarchical modulation scheme to improve power margin for orthogonal frequency division multiple access-passive optical networks (OFDMA-PONs).

With the introduction of femtocells, cellular networks are moving from the conventional centralized network architecture to a distributed one, where each network cell should make its own radio reso

We study the problem of designing an efficient resource allocation scheme in the application of providing integrated multimedia services over digital subscriber line.

In this article, the reliability of RF power transistors' solder attachments is characterized through experiments and simulations.

We extend studies on power optimization in VDSL2 to G.fast, the technology under definition.

Power consumption in modern processor design is a key aspect. Optimizing the processor for power leads to direct savings in battery energy consumption in case of mobile devices.

The previous calculations of power penalties on receiver sensitivity of PIN receivers due to the presence of timing jitter are extended to include APD receivers.

The effect of decision-time jitter on the performance of optical communication systems is evaluated theoretically assuming a receiver with a matched filter to give a raised-cosine waveform of the

Power penalties in bit error rate due to limited transmission bandwidth are studied theoretically and experimentally.

The present paper gives a brief discussion of some of the more important problems connected with the supplying of power to telephone offices, and developments which are being perfected to bring abo

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