Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Kakkavas AT"'
Autor:
Palaiologos, Michail, García, Mario H. Castãneda, Kakkavas, Anastasios, Stirling-Gallacher, Richard A., Caire, Giuseppe
The array design problem of multiple-input multiple-output (MIMO) systems in a line-of-sight (LoS) transmit environment is examined. As uniform array configurations at the transmitter (Tx) and receiver (Rx) are optimal at specific transmit distances
Externí odkaz:
http://arxiv.org/abs/2302.07218
For the next generation of mobile communications systems, the integration of sensing and communications promises benefits in terms of spectrum utilization, cost, latency, area and weight. In this paper, we categorize and summarize the key features an
Externí odkaz:
http://arxiv.org/abs/2201.04498
Autor:
Behnam Khodapanah, Sanjay Goyal, Murat Gursu, Jedrzej Stanczak, Anastasios Kakkavas, Recep Temelli, Akin Badalioglu, Panagiotis Spapis, Chitradeep Majumdar
Publikováno v:
IEEE Access, Vol 12, Pp 171790-171806 (2024)
5-th generation (5G) has brought mobility robustness and interruption time reduction enhancements to mobility procedures. Advanced beam management procedures were also introduced in 5G, including beam-based mobility. In this paper, we summarize the p
Externí odkaz:
https://doaj.org/article/886879c7db5b4f838869abf98a2c95af
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 1029-1046 (2024)
Traffic matrices (TMs) contain crucial information for managing networks, optimizing traffic flow, and detecting anomalies. However, directly measuring traffic to construct a TM is resource-intensive and computationally expensive. A more practical ap
Externí odkaz:
https://doaj.org/article/a6a245e0c5a348ce91cc737df0687d9f
Autor:
Kakkavas, Anastasios, Wymeersch, Henk, Seco-Granados, Gonzalo, García, Mario H. Castañeda, Stirling-Gallacher, Richard A., Nossek, Josef A.
We consider a single-anchor multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system with imperfectly synchronized transmitter (Tx) and receiver (Rx) clocks, where the Rx estimates its position based on the recei
Externí odkaz:
http://arxiv.org/abs/2012.01590
Autor:
Kakkavas, Anastasios, García, Mario H. Castañeda, Seco-Granados, Gonzalo, Wymeersch, Henk, Stirling-Gallacher, Richard A., Nossek, Josef A.
In the context of positioning a target with a single-anchor, this contribution focuses on the Fisher information about the position, orientation and clock offset of the target provided by single-bounce reflections. The availability of prior knowledge
Externí odkaz:
http://arxiv.org/abs/2012.01597
Autor:
Wu, Yibo, Peng, Bile, Wymeersch, Henk, Seco-Granados, Gonzalo, Kakkavas, Anastasios, Garcia, Mario H. Castañeda, Stirling-Gallacher, Richard A.
The application of cooperative localization in vehicular networks is attractive to improve accuracy and coverage. Conventional distance measurements between vehicles are limited by the need for synchronization and provide no heading information of th
Externí odkaz:
http://arxiv.org/abs/1907.04700
Autor:
Kakkavas, Anastasios, Seco-Granados, Gonzalo, Wymeersch, Henk, García, Mario H. Castañeda, Stirling-Gallacher, Richard A., Nossek, Josef A.
Publikováno v:
IEEE Global Communications Conference (GLOBECOM), Waikoloa, HI, USA, 2019, pp. 1-6
In this work, we study optimal transmit strategies for minimizing the positioning error bound in a line-of-sight scenario, under different levels of prior knowledge of the channel parameters. For the case of perfect prior knowledge, we prove that two
Externí odkaz:
http://arxiv.org/abs/1906.01671
Autor:
Kakkavas, Anastasios, García, Mario H. Castañeda, Strirling-Gallacher, Richard A., Nossek, Josef A.
Publikováno v:
IEEE Transactions on Wireless Communications, vol. 18, no. 11, pp. 5196-5210, Nov. 2019
The fundamental limits of single-anchor multi-antenna positioning are investigated. Exploiting the structure of the multiple input-multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) channel at millimeter-wave frequencies, we prese
Externí odkaz:
http://arxiv.org/abs/1808.08116
Autor:
Kakkavas, Anastasios, García, Mario H. Castañeda, Stirling-Gallacher, Richard A., Nossek, Josef A.
Publikováno v:
IEEE Global Communications Conference (GLOBECOM), Abu Dhabi, United Arab Emirates, 2018, pp. 206-212
We study the performance bounds of vehicle-to-vehicle (V2V) relative positioning for vehicles with multiple antenna arrays. The Cram\'{e}r-Rao bound for the estimation of the relative position and the orientation of the Tx vehicle is derived, when an
Externí odkaz:
http://arxiv.org/abs/1808.07373