Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Avendi, M. R."'
Segmentation of the left ventricle (LV) from cardiac magnetic resonance imaging (MRI) datasets is an essential step for calculation of clinical indices such as ventricular volume and ejection fraction. In this work, we employ deep learning algorithms
Externí odkaz:
http://arxiv.org/abs/1512.07951
Differential encoding and decoding can be employed to circumvent channel estimation in wireless relay networks. This article studies differential amplify-and-forward relaying using linear combining with arbitrary fixed combining weights in time-varyi
Externí odkaz:
http://arxiv.org/abs/1512.01516
Autor:
Avendi, M. R., Jafarkhani, Hamid
Differential distributed space-time coding (D-DSTC) is a cooperative transmission technique that can improve diversity in wireless relay networks in the absence of channel information. Conventionally, it is assumed that channels are flat-fading and r
Externí odkaz:
http://arxiv.org/abs/1411.4287
For systems and devices, such as cognitive radio and networks, that need to be aware of available frequency bands, spectrum sensing has an important role. A major challenge in this area is the requirement of a high sampling rate in the sensing of a w
Externí odkaz:
http://arxiv.org/abs/1408.4544
Autor:
Avendi, M. R.
The technique of cooperative communications is finding its way in the next generations of many wireless communication applications. Due to the distributed nature of cooperative networks, acquiring fading channels information for coherent detection is
Externí odkaz:
http://arxiv.org/abs/1408.3474
Differential distributed space-time coding (D-DSTC) has been considered to improve both diversity and data-rate in cooperative communications in the absence of channel information. However, conventionally, it is assumed that relays are perfectly sync
Externí odkaz:
http://arxiv.org/abs/1407.6751
Autor:
Avendi, M. R., Nguyen, Ha H.
This paper studies dual-hop amplify-and-forward relaying system employing differential encoding and decoding over time-varying Rayleigh fading channels. First, the convectional "two-symbol" differential detection (CDD) is theoretically analysed in te
Externí odkaz:
http://arxiv.org/abs/1407.1360
Differential distributed space-time coding (D-DSTC) technique has been considered for relay networks to provide both diversity gain and high throughput in the absence of channel state information. Conventional differential detection (CDD) or two-symb
Externí odkaz:
http://arxiv.org/abs/1404.1991
Autor:
Avendi, M. R., Nguyen, Ha H.
This paper proposes and analyses selection combining (SC) at the destination for differential amplify-andforward (D-AF) relaying over slow Rayleigh-fading channels. The selection combiner chooses the link with the maximum magnitude of the decision va
Externí odkaz:
http://arxiv.org/abs/1403.8130
Autor:
Avendi, M. R., Nguyen, Ha H.
This paper is concerned with the performance of differential amplify-and-forward (D-AF) relaying for multi-node wireless communications over time-varying Rayleigh fading channels. A first-order auto-regressive model is utilized to characterize the ti
Externí odkaz:
http://arxiv.org/abs/1403.8128