@article{deshmukh_lin_lou_kamel_yang_guvenc_2022, title={Intelligent Feedback Overhead Reduction (iFOR) in Wi-Fi 7 and Beyond}, DOI={10.1109/VTC2022-Spring54318.2022.9860553}, abstractNote={The IEEE 802.11 standard based wireless local area networks (WLANs) or Wi-Fi networks are critical to provide internet access in today’s world. The increasing demand for high data rate in Wi-Fi networks has led to several advancements in the 802.11 standard. Supporting MIMO transmissions with higher number of transmit antennas operating on wider bandwidths is one of the key capabilities for reaching higher throughput. However, the increase in sounding feedback overhead due to higher number of transmit antennas may significantly curb the throughput gain. In this paper, we develop an unsupervised learning-based method to reduce the sounding duration in a Wi-Fi MIMO link. Simulation results show that our method uses approximately only 8% of the number of bits required by the existing feedback mechanism and it can boost the system throughput by up to 52%.}, journal={2022 IEEE 95TH VEHICULAR TECHNOLOGY CONFERENCE (VTC2022-SPRING)}, author={Deshmukh, Mrugen and Lin, Zinan and Lou, Hanqing and Kamel, Mahmoud and Yang, Rui and Guvenc, Ismail}, year={2022} }
 @article{maeng_deshmukh_guvenc_bhuyan_dai_2021, title={Interference Analysis and Mitigation for Aerial IoT Considering 3D Antenna Patterns}, volume={70}, ISSN={["1939-9359"]}, url={https://doi.org/10.1109/TVT.2020.3046121}, DOI={10.1109/TVT.2020.3046121}, abstractNote={Due to dense deployments of Internet of things (IoT) networks, interference management becomes a critical challenge. With the proliferation of aerial IoT devices, such as unmanned aerial vehicles (UAVs), interference characteristics in 3D environments will be different than those in the existing terrestrial IoT networks. In this paper, we consider 3D topology IoT networks with a mixture of aerial and terrestrial links, with low-cost cross-dipole antennas at ground nodes and both omni-directional and cross-dipole antennas at aerial nodes. Considering a massive-access communication scenario, we first derive the statistics of the channel gain at IoT receivers in closed form while taking into account the radiation patterns of both ground and aerial nodes. These are then used to calculate the ergodic achievable rate as a function of the height of the aerial receiver and the cumulative interference. We propose a low-complexity interference mitigation scheme that utilizes 3D antenna radiation pattern with different dipole antenna settings. Our results show that using the proposed scheme, the ergodic achievable rate improves as the height of the aerial receivers increases. In addition, we also show that the ratio between the ground and aerial receivers that maximizes the peak rate increases with the height of the aerial IoT receiver.}, number={1}, journal={IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Maeng, Sung Joon and Deshmukh, Mrugen A. and Guvenc, Ismail and Bhuyan, Arupjyoti and Dai, Huaiyu}, year={2021}, month={Jan}, pages={490–503} }
 @article{deshmukh_sahin_guvenc_2021, title={RL-Based Waveform Adaptation With Partial Overlapping Tones in HetNets}, volume={25}, ISSN={["1558-2558"]}, url={https://doi.org/10.1109/LCOMM.2021.3088841}, DOI={10.1109/LCOMM.2021.3088841}, abstractNote={Partially-overlapping tones (POT) mitigate the co-channel interference in a wireless network by exploiting the space between adjacent subcarriers through intentional frequency offsets (FOs). In this letter, we use partially-overlapping tones (POT) in a two-tier heterogeneous network, where multiple small cells (SCs) interfere with a macro cell. We propose a multi-agent Q-learning-based approach to obtain transmit power and intentional FOs assigned to SCs for filtered multi-tones with various pulse shapes. We show that the proposed method reduces the total interference and in turn, increases the throughput in the network. We then compare the performance of the proposed approach to the existing schemes and demonstrate its advantage with numerical results.}, number={9}, journal={IEEE COMMUNICATIONS LETTERS}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Deshmukh, Mrugen and Sahin, Alphan and Guvenc, Ismail}, year={2021}, month={Sep}, pages={3129–3133} }