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Cross-Layer combining of adaptive Modulation and coding with truncated ARQ over wireless links
We developed a cross-layer design which combines adaptive modulation and coding at the physical layer with a truncated automatic repeat request protocol at the data link layer, in order to maximizeExpand
A simple and general parameterization quantifying performance in fading channels
The proposed analysis offers a simple and unifying approach to evaluating the performance of uncoded and (possibly space-time) coded transmissions over fading channels, and the method applies to almost all digital modulation schemes, including M-ary phaseshift keying, quadrature amplitude modulation, and frequency-shift keying with coherent or noncoherent detection. Expand
Statistical tests for presence of cyclostationarity
Asymptotically optimal /spl chi//sup 2/ tests are developed to detect the presence of cycles in the kth-order cyclic cumulants or polyspectra, without assuming any specific distribution on the data. Expand
Queuing with adaptive modulation and coding over wireless links: cross-Layer analysis and design
A cross-layer design is introduced, which optimizes the target packet error rate of AMC at the physical layer, to minimize thpacket loss rate and maximize the average throughput, when combined with a finite-length queue at the data link layer. Expand
Optimal designs for space-time linear precoders and decoders
We introduce a new paradigm for the design of transmitter space-time coding that we refer to as linear precoding. It leads to simple closed-form solutions for transmission over frequency-selectiveExpand
High-Performance Cooperative Demodulation With Decode-and-Forward Relays
A high-performance low-complexity coherent demodulator at the destination in the form of a weighted combiner is derived from a practically attractive decode-and-forward relay strategy to achieve spatial diversity gains, regardless of the underlying constellation. Expand
Linear constellation-precoding for OFDM with maximum multipath diversity and coding gains
This paper introduces linear constellation precoding for OFDM transmissions over frequency-selective fading channels by exploiting the correlation structure of OFDM subchannels to perform optimal subcarrier grouping and revealing its performance merits. Expand
Localization via ultra-wideband radios: a look at positioning aspects for future sensor networks
In this article, theoretical limits for TOA estimation and TOA-based location estimation for UWB systems have been considered and suboptimal but practical alternatives have been emphasized. Expand
Blind PARAFAC receivers for DS-CDMA systems
This paper links the direct-sequence code-division multiple access (DS-CDMA) multiuser separation-equalization-detection problem to the parallel factor (PARAFAC) model, which is an analysis toolExpand
Basis expansion models and diversity techniques for blind identification and equalization of time-varying channels
Novel algorithms are developed for blind identification, direct, zero-forcing equalization and minimum mean square error (MMSE) equalization by combining channel diversity with temporal (fractional sampling) and/or spatial diversity which becomes available with multiple receivers. Expand