no code implementations • 21 Sep 2023 • Wali Ullah Khan, Eva Lagunas, Zain Ali, Asad Mahmood, Chandan Kumar Sheemar, Manzoor Ahmed, Symeon Chatzinotas, Björn Ottersten
Backscatter communication (BC) technology offers sustainable solutions for next-generation Internet-of-Things (IoT) networks, where devices can transmit data by reflecting and adjusting incident radio frequency signals.
no code implementations • 29 Jul 2023 • Wali Ullah Khan, Eva Lagunas, Asad Mahmood, Zain Ali, Symeon Chatzinotas, Björn Ottersten
The objective is to maximize the sum rate of NOMA D2D communications by simultaneously optimizing the power budget of D2D transmitter, NOMA power allocation coefficients of D2D receivers and passive beamforming of RIS while guaranteeing the quality of services of UAV user.
no code implementations • 4 Aug 2022 • Wali Ullah Khan, Zain Ali, Eva Lagunas, Symeon Chatzinotas, Björn Ottersten
We also propose two suboptimal schemes with fixed power allocation and random subcarrier beam assignment as the benchmark.
no code implementations • 6 May 2022 • Wali Ullah Khan, Eva Lagunas, Asad Mahmood, Zain Ali, Muhammad Asif Symeon Chatzinotas, Björn Ottersten
Reflecting intelligent surfaces (RIS) has gained significant attention due to its high energy and spectral efficiency in next-generation wireless networks.
no code implementations • 31 Mar 2022 • Wali Ullah Khan, Eva Lagunas, Zain Ali, Muhammad Awais Javed, Manzoor Ahmed, Symeon Chatzinotas, Björn Ottersten, Petar Popovski
Unmanned Aerial Vehicles (UAVs) are an important component of next-generation wireless networks that can assist in high data rate communications and provide enhanced coverage. Their high mobility and aerial nature offer deployment flexibility and low-cost infrastructure support to existing cellular networks and provide many applications that rely on mobile wireless communications.
no code implementations • 10 Mar 2022 • Wali Ullah Khan, Asim Ihsan, Tu N. Nguyen, Zain Ali, Muhammad Awais Javed
We discuss different use cases of backscatter communications in NOMA-enabled 6G vehicular networks.
no code implementations • 23 Sep 2021 • Wali Ullah Khan, Eva Lagunas, Asad Mahmood, Zain Ali, Symeon Chatzinotas, Björn Ottersten, Octavia A. Dobre
This paper proposes a new optimization approach to enhance the spectral efficiency of nonorthogonal multiple access (NOMA)-BC network.
