Coexistence of pico- and femto-cellular LTE-unlicensed with legacy indoor Wi-Fi deployments
作者： Andra M. Voicu , Ljiljana Simic , Marina Petrova
DOI: 10.1109/ICCW.2015.7247523
关键词: Picocell 、 Communication channel 、 Transmitter power output 、 Cellular network 、 Mobile broadband 、 Wireless lan 、 Femto- 、 Telecommunications link 、 Femtocell 、 Computer network 、 Computer science 、 Throughput
摘要: Due to the high expected increase in mobile data traffic and scarcity of licensed spectrum for cellular networks, 3GPP has started preliminary work standardizing LTE operation 5 GHz unlicensed band (LTE-U). However, LTE-U would interfere with other legacy technologies operating band, most important being contention-based Wi-Fi, which be blocked by conventional LTE, is designed dedicated spectrum. Consequently, some coexistence-enabling mechanisms have been proposed LTE-U, but their evaluation still at an early stage. In this paper we present a detailed system-level study on downlink throughput performance indoor IEEE 802.11n deployments coexisting band. We consider several coexistence (i.e. listen-before-talk interference-aware channel selection) femtocell outdoor picocell scenarios realistic range network densities real locations. also networks deployed multiple operators, evaluate impact different transmit power levels. Our results show that general both Wi-Fi benefit from large number available channels isolation provided building shielding GHz. Additionally, typical scenarios, selection more efficient than mechanisms. For picocells deployments, two are isolated each other, can user when operators coexist.
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