Conference Papers
Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506
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Item A Survey on Device to Device Communications(Institute of Electrical and Electronics Engineers Inc., 2022) Raghu, T.V.; Manjappa, M.The demand for the network capacity from the first generation to the current age of technology is exponentially increasing and it leads to scarcity of resources. The increase in the number of users and applications also causes more power consumption. In the future, billions of heterogeneous connected devices will be there and everyone will expect high-quality services. All requirements are to get higher data rates, minimum network latency, greater number of connected devices and more throughput. The existing spectrum resources technologies are insufficient to meet all of these cellular customers' requirements. Device-to-Device (D2D) communication is a potential strategy for increasing device performance by enabling direct transfer between user pairs that are close to each other. The benefits of employing D2D communication include lower network latency, reduced power consumption, greater throughput, spectrum reuse, and much more coverage area. Because D2D users use the same licensed spectrum as cellular users, interference control between cellular users and D2D users is regarded as one of the most essential concerns when D2D is introduced to cellular networks. We present a detailed review of the various state-of-the-art methodologies for interference management in D2D communication supported in cellular networks. The different D2D communication mode is also investigated using various scenarios for resource sharing between cellular and D2D users. Moreover power consumption techniques are also analyzed to improve the battery life conservation. © 2022 IEEE.Item Prioritized and optimum Resource Allocation for Public Safety Applications in Overlay D2D Communication(Institute of Electrical and Electronics Engineers Inc., 2023) Raghu, T.V.; Manjappa, M.D2D communication can be used for public safety as well as commercial applications. Public safety applications require efficient delivery of crucial information to concerned authorities for sharing information and coordination to facilitate effective incident response. Commercial applications include messaging, streaming gaming, Etc. The emergence of 5G cellular networks has introduced a wide range of connected devices, resulting in increased challenges in spectrum reuse due to a more significant number of devices competing for limited resources. There is no distinction between public safety and commercial applications for resource allocation, and all user equipment in the network is treated equally. However, public safety communication has to get more privileges than commercial applications for resource allocation. In this study, we propose Weighted Round Robin(WRR) algorithm for resource allocation to D2D users in the overlay mode D2D communication cellular network. In the standard round-robin algorithm, all users are treated equally well irrespective of the application types and allocate resources sequentially one after another in a round-robin manner. In a WRR algorithm, we prioritize public safety applications over commercial applications for resource allocation in an inband-overlay mode and maximize the number of D2D pairs participating in the public safety application. The simulation result shows that the proposed algorithm prioritizes public safety applications for different weights. © 2023 IEEE.