4 accepted papers
Users interacting with voice assistants today need to phrase their requests in a very specific manner to elicit an appropriate response. This limits the user experience, and is partly due to the lack of reasoning capabilities of dialogue platforms and the hand-crafted rules that require extensive la…
In this paper, the estimation of a narrowband time-varying channel under the practical assumptions of finite block length and finite transmission bandwidth is investigated. It is shown that the signal after passing through a time-varying narrowband channel, under these assumptions, reveals a particu…
The estimation of a narrowband time-varying channel under finite block length and transmission bandwidth is investigated. A novel method is proposed for estimation in the delay-Doppler domain by exploiting structural constraints on low-rank matrix recovery. The proposed algorithm uses Gauss-Seidel i…
Multi-scale, multi-lag (MSML) models are adopted for time-varying (ultra)-wideband channels that are relevant for underwater acoustic, radar and ultrawideband radio applications. MSML channels are characterized by a limited number of paths, each parameterized by a delay, Doppler scale, and attenuati…