Results 31 to 40 of about 431,582 (257)

Energy-efficient transmission strategies for CoMP downlink—overview, extension, and numerical comparison

EURASIP Journal on Wireless Communications and Networking, 2018
This paper focuses on energy-efficient coordinated multi-point (CoMP) downlink in multi-antenna multi-cell wireless communications systems. We provide an overview of transmit beamforming designs for various energy efficiency (EE) metrics including ...
Kien-Giang Nguyen, Oskari Tervo, Quang-Doanh Vu, Le-Nam Tran, Markku Juntti   +4 more
doaj   +1 more source

Wireless Powered Communication: Opportunities and Challenges

, 2014
The performance of wireless communication is fundamentally constrained by the limited battery life of wireless devices, whose operations are frequently disrupted due to the need of manual battery replacement/recharging.
Bi, Suzhi, Ho, Chin Keong, Zhang, Rui
core   +1 more source

Minimization of Handoff Failure Probability for Next-Generation Wireless Systems [PDF]

, 2010
During the past few years, advances in mobile communication theory have enabled the development and deployment of different wireless technologies, complementary to each other.
Banerjee, Joydeep, Biswas, Utpal, Jana, Tapas, Naskar, M. K., Saha, Souvik Kumar, Sarddar, Debabrata   +5 more
core   +2 more sources

Synchronization in wireless communications [PDF]

, 2009
The last decade has witnessed an immense increase of wireless communications services in order to keep pace with the ever increasing demand for higher data rates combined with higher mobility.
Ghogho, Mounir, Luise, Marco, Panayırcı, Erdal, Panayırcı, Erdal, Serpedin, Erchin, Steendam, Heidi   +5 more
core   +2 more sources

6G: The Intelligent Network of Everything

IEEE Access
The global 6G vision has taken its shape after years of international research and development efforts. This work culminated in ITU-R Recommendation on “IMT-2030 Framework”.
Harri Pennanen, Tuomo Hanninen, Oskari Tervo, Antti Tolli, Matti Latva-Aho   +4 more
doaj   +1 more source

Latency-Aware Highly-Reliable mmWave Systems via Multi-Point Connectivity

IEEE Access, 2022
The sensitivity of the millimeter-wave (mmWave) radio channel to blockages is a fundamental challenge in achieving low-latency and highly-reliable connectivity.
Dileep Kumar, Satya Krishna Joshi, Antti Tolli   +2 more
doaj   +1 more source

Deep Learning Framework for Wireless Systems: Applications to Optical Wireless Communications

, 2018
Optical wireless communication (OWC) is a promising technology for future wireless communications owing to its potentials for cost-effective network deployment and high data rate.
Lee, Hoon, Lee, Inkyu, Lee, Sang Hyun, Quek, Tony Q. S.   +3 more
core   +1 more source

Max-Min Fairness for Stacked Intelligent Metasurface-Assisted Multi-User MISO Systems

IEEE Open Journal of the Communications Society
Stacked intelligent metasurface (SIM) is an emerging technology that uses multiple reconfigurable surface layers to enable flexible wave-based beamforming.
Nipuni Ginige, Prathapasinghe Dharmawansa, Arthur Sousa De Sena, Nurul Huda Mahmood, Nandana Rajatheva, Matti Latva-Aho   +5 more
doaj   +1 more source

Performance analysis of ultra-reliable short message decode and forward relaying protocols

EURASIP Journal on Wireless Communications and Networking, 2018
Machine-type communication (MTC) is a rapidly growing technology which covers a broad range of automated applications and propels the world into a fully connected society.
Parisa Nouri, Hirley Alves, Matti Latva-aho   +2 more
doaj   +1 more source

Over-the-Air Phase Calibration Methods for 5G mmW Antenna Array Transceivers

IEEE Access
Calibration is essential to optimize the performance of any radio transceiver during its development and manufacturing processes. This paper proposes over-the-air (OTA) calibration methods based on measuring and calibrating the phases of phased array ...
Markku Jokinen, Olli Kursu, Nuutti Tervo, Aarno Parssinen, Marko E. Leinonen   +4 more
doaj   +1 more source