2014/12/24 by S.M. Alamouti, Ahmad R. Sharafat, Alamouti, Sajjad Mehri +1
Computer Science · Engineering · #Advanced MIMO Systems Optimization #Advanced Wireless Network Optimization #Cooperative Communication and Network Coding #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI)
paper · pdf · doi:10.48550/arxiv.1412.7618
openalex publication_date 2014/12/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Device-to-device (D2D) communications as an underlay of a LTE-A (4G) network\ncan reduce the traffic load as well as power consumption in cellular networks\nby way of utilizing peer-to-peer links for users in proximity of each other.\nThis would enable other cellular users to increment their traffic, and the\naggregate traffic for all users can be significantly increased without\nrequiring additional spectrum. However, D2D communications may increase\ninterference to cellular users (CUs) and force CUs to increase their transmit\npower levels in order to maintain their required quality-of-service (QoS). This\npaper proposes an energy-efficient resource allocation scheme for D2D\ncommunications as an underlay of a fully loaded LTE-A (4G) cellular network.\nSimulations show that the proposed scheme allocates cellular uplink resources\n(transmit power and channel) to D2D pairs while maintaining the required QoS\nfor D2D and cellular users and minimizing the total uplink transmit power for\nall users.\n