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3GPP LWIP Release 13 technology and its pre- standard version Wi-Fi Boost have recently emerged as an efficient LTE and Wi-Fi integration at the IP layer, allowing the combined use of LTE and Wi-Fi radio resources by the user. This solves the contention problems of Wi-Fi cell by routing uplink traffic over LTE, thus enabling an optimum usage of the unlicensed band for downlink. In this paper, we present...
Wireless fidelity (Wi-Fi) benefits from large downlink bandwidth but suffers from inefficient uplink contention, while long term evolution (LTE) benefits from efficient scheduling in the uplink but suffers from bandwidth scarcity in the downlink. In this paper, we quantify the performance gain of Boost, a new technology that blends the advantages of Wi-Fi and LTE in an efficient manner to overcome...
Wi-Fi is providing hotspot capacity in conjunction with broadband cellular networks. We propose to divert uplink 802.11 MAC layer traffic to the cellular uplink towards improving range and downlink efficiency. This architecture uses the large unlicensed spectrum on the downlink, and the higher power and other advanced media access and physical layer techniques of the LTE uplink. Initial measurements...
Wi-Fi provides cost-effective data capacity at hotspots in conjunction with broadband cellular networks. The hotspots are required to capture a large number of users and provide high data rates. Data rates, over the Wi-Fi interface, are influenced by the media access protocol, which loses throughput due to contention based protocol delays and unintended collisions when a large number of users are...
The viability of device to device (D2D) communication on uplink resources \cite{Fodor2012a} as also the benefits accruing from network control over such communication, on licensed spectrum \cite{Lei2012a}, are quite well understood today. We investigate the merits of a particular system instantiation based on these two tenets. The challenge of scheduling communication between two devices using remote...
The Enhanced High-Rate Packet Data (eHRPD) system was developed to permit seamless mobility between Third Generation (3G) High Rate Packet Data (HRPD) and Fourth Generation (4G) Long Term Evolution (LTE) cellular networks. The resulting network architecture is capable of supporting different modes of coupling between the two systems with different levels of optimization in terms of service interruption...
Multi-point reception techniques for enhancing cell-edge throughput are currently under standardization in cellular wireless standards as Single Frequency Dual Cell (SFDC) [1] in 3GPP and as Single Carrier Multi Link(SCML) [2] in 3GPP2. Unlike soft-handover operation, User Equipment(UEs) at cell-edge (handover zone) can independently request data from adjacent cells in multi point operation. Although...
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