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IEEE GLOBECOM 2010 Call for Tutorial Proposals

Grassmannian Signatures for CDMA Systems - Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE

Codebooks constructed from Welch bound equality (WBE) sequences have been show to be optimal in terms of sum capacity in synchronous CDMA systems. Unfortunately, these codebooks are a function of the number of active signatures and need to be reassigned as the number of active users changes to maintain optimality. To mitigate the problems caused by the loss of the Welch bound equality property,...

Dr . Henry Samueli of Broadcom Delivered Opening Keynote Address at IEEE GLOBECOM

In this paper, two new modulation schemes using multilevel pulse-position modulation (PPM) for application in unipolar optical wireless systems are presented. Balanced incomplete block designs (BIBD) are used for constructing the symbol alphabets. Each symbol is obtained by combining multiple codewords of a BIBD code. In one scheme the symbols have equal energies, and therefore, no threshold is...

Transmission subspace tracking for MIMO communications systems - Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE

This paper describes the benefits of transmission subspace tracking for multiple input multiple output communications systems, and applies the concepts of previous work on adaptive transmit antenna algorithms to this problem. A specific stochastic gradient technique of subspace or “multi-mode” tracking of the independent modes of the MIMO transfer function and the application to space time codi...

DESIGN GUIDELINES OF PARALLEL CONCATENATED CONVOLUTIONAL CODES - Global Telecommunications Conference, 1995. GLOBECOM '95., IEEE

A parallel concatenated convolutional coding scheme consists of two simple constituent systematic convolutional encoders linked by an interleaver. The input bits to the first encoder are scrambled by the interleaver before entering the second encoder. The codeword of the parallel concatenated code consists of the input bits to the first encoder followed by the parity check bits of both encoders...