We present a learning-based channel-adaptive joint source and channel coding (CA-JSCC) scheme for wireless image transmission over multipath fading channels. The proposed method is an end-to-end autoencoder architecture with dual-attention mechanism employing orthogonal frequency division multiplexing (OFDM) transmission. Unlike the previous works, our approach adaptive to channel-gain noise-po...

Future wireless networks will enable people on the move to communicate with anyone, anywhere, at any time, using a range of multimedia services. The exponential growth of cellular telephone and paging systems coupled with the proliferation of laptop and palmtop computers indicate a bright future for such networks, both as stand-alone systems and as part of the larger networking infrastructure. ...

Super dense wireless sensor networks (WSNs) have become popular with the development of Internet of Things (IoT), Machine-to-Machine (M2M) communications and Vehicular-to-Vehicular (V2V) networks. While highly-dense wireless networks provide efficient and sustainable solutions to collect precise environmental information, a new channel access scheme is needed to solve the channel collision prob...

An efficient resource sharing strategy is proposed for multimedia wireless networks. Assume the channel resource in a wireless system is partitioned into two sets: one for voice calls and one for video calls. In the proposed channel borrowing strategy, voice calls can borrow channels from those pre-allocated to video calls temporarily when all voice channels are busy. A threshold type decision ...

Channel charting is a recently proposed framework that applies dimensionality reduction to channel state information (CSI) in wireless systems with the goal of associating pseudo-position each mobile user low-dimensional space: chart. summarizes entire CSI dataset self-supervised manner, which opens up range applications are tied location. In this article, we introduce theoretical underpinnings...