Abstract LTE Heterogeneous networks introduced multiple low power base stations (Pico cell) i.e. relay nodes or Remote Radio Heads in addition to High power cells (Macro cells) to increase the hotspot capacity and to provide the best QoS and high data rates for the indoor as well as outdoor users. But due to multiple low power and high power cells working on same frequency,... LTE Heterogeneous networks introduced multiple low power base stations (Pico cell) i.e. relay nodes or Remote Radio Heads in addition to High power cells (Macro cells) to increase the hotspot capacity and to provide the best QoS and high data rates for the indoor as well as outdoor users. But due to multiple low power and high power cells working on same frequency, there are several interference and handover issues come forward This paper comprises the research conducted to address these issues. It includes the comprehensive survey about handover issues, existing handover management techniques, effect of interference on Handover, their flaws and the future work required to address these issues. The survey is performed to give a platform for finishing the gap between researchers and engineers for the better future of LTE heterogeneous networks. Read More Read Less

Abstract Long Term Evolution Advanced (LTE-Advanced) is the one of the fastest growing technologies. As it is new form of Long Term Evolution (LTE) networks. It provides its subscribers with improved service capabilities and improved network performance and this is carried through the intelligent deployment of new techniques and technologies. In 3G LTE the transmission of data is carried in the form of packets... Long Term Evolution Advanced (LTE-Advanced) is the one of the fastest growing technologies. As it is new form of Long Term Evolution (LTE) networks. It provides its subscribers with improved service capabilities and improved network performance and this is carried through the intelligent deployment of new techniques and technologies. In 3G LTE the transmission of data is carried in the form of packets and through the smart selection of the users. Long Term Evolution (LTE) support traffics like video conferencing, voice over IP (VoIP), video streaming, file transfer and also the web browsing. Smart packet scheduling algorithms are responsible for choosing fine time and frequency resolution and they play the main role in LTE networks. Some significantly known features of LTE-Advanced are enhancement in heterogeneous networks, carrier aggregation, multipoint transmission and reception, use of relay nodes in the wireless network and advanced multiple inputs and multiple output usage. LTE-Advanced is for enhancement of the radio access part of cellular networks. In this paper, we compare some packet scheduling algorithms for LTE downlink mechanism. Read More Read Less