تطور هذه الدراسة فئة جديدة من رموز تعريشة فائقة التعامد لأربعة هوائيات مرسلة استنادا إلى ترميز الزمكاني المزدوج. تقسم هوائيات الإرسال إلى مجموعتين، في كل منهما هوائيان إرسال. تقسم بتات المعلومات المرس...
Wireless local area networking technologies are widely used in communication-based train control (CBTC) systems, where handoff latency is the key factor affecting the transmission performance. A multi...
Wireless architectures combining the use of spatial division multiplexing (SDM) and space-time block coding (STBC) have begun to appear in the latest communications standards. In recent years, differe...
When two users transmit signals to a common receiver, one can design precoders to cancel the interference for each user, if each user knows all the channel information perfectly. Also the diversity fo...
When two users transmit signals to a common receiver, one can design precoders to cancel the interference for each user if each user knows all the channel information perfectly. Also the diversity for...
We study the stacked orthogonal space-time code for the richly scattered Rayleigh fading multiple-input multiple-output (MIMO) channel, from an information theoretic perspective. It is known that the ...
We study performance tradeoffs for joint diversity enhancement and interference mitigation in multi-cell networks with multiple antennas at the transmitter. Our transmitter combines a space time codin...
We study multi-user transmission and detection schemes for a multi-access relay network (MARN) with linear constraints at all nodes. In a (J, Ja, Ra, M) MARN, J sources, each equipped with Ja antennas...
We study diversity and interference mitigation with an emphasis on the interaction between the transmitter-receiver (Tx-Rx) pairs in a two-user, two-cell system in which the performance at each Rx dep...
We study a class of space-time codes constructed by linear dispersion encoding that allow low-complexity linear minimum mean square error (MMSE) decoding for a multiple access system. Considering that...
We propose several differential decoding schemes for asynchronous multi-user MIMO systems based on orthogonal space-time block codes (OSTBCs), where neither the transmitters nor the receiver has knowl...
We propose and compare two receiver structures that combine optimum receive beamforming, respectively, with the conventional Alamouti space-time block code (STBC) decoder and the minimum mean squared ...
We propose a stacked orthogonal space-time architecture for the quasi-static, MIMO Rayleigh fading channel where the K transmit antennas are divided into K/2 groups. Each group employs the Alamouti de...
We propose a scheme like that of S. Alamouti (see IEEE Journal on Selected Areas in Communications, p.1451-8, 1998) for combining space-time block-coding with single-carrier frequency-domain equalizat...
We propose a reception scheme with adaptive beamforming for multiuser Alamouti-type space-time block code. The proposed scheme performs space-time processing to optimally estimate the transmitted spac...
We propose a novel generalized linear quasi-maximum-likelihood (quasi-ML) decoder for orthogonal space-time block codes (OSTBCs) for wireless communications over time-selective fading channels. The pr...
We propose a new joint receiver for the blind detection of synchronous co-channel multiuser signals modulated with orthogonal space-time block codes (OSTBC). We exploit the algebraic structure of the ...
We propose a differential encoding scheme and several differential decoding schemes for asynchronous multiuser MIMO systems based on orthogonal space-time block codes (OSTBCs) where neither the transm...
We present an overview of research activities on space-time coding for broadband wireless transmission performed at AT&T Shannon Laboratory over the past two years. The emphasis is on physical layer m...
We present a receiver design for joint interference suppression and equalization of asynchronous multi-user space-time block coded (STBC) systems. We describe the design of front end prefilters to syn...