Results 241 to 250 of about 4,599,562 (265)
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Delay analysis of heterogeneous cellular networks
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2015Due to a wider range of services in future heterogeneous cellular network (HCN), packet transmission delay becomes a more essential performance metric for system design. In this paper, we propose an analytical framework to derive the delay performance of HCN in terms of local delay, by modeling the locations of base stations (BSs) in HCN as ...
Gong-Zheng Zhang +3 more
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Energy Efficient Heterogeneous Cellular Networks
IEEE Journal on Selected Areas in Communications, 2013With the exponential increase in mobile internet traffic driven by a new generation of wireless devices, future cellular networks face a great challenge to meet this overwhelming demand of network capacity. At the same time, the demand for higher data rates and the ever-increasing number of wireless users led to rapid increases in power consumption and
Yong Sheng Soh +3 more
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Capacity growth of heterogeneous cellular networks
Bell Labs Technical Journal, 2013Heterogeneous cellular networks are composed of a mixture of macro and small (pico) cells embedded in the macro network. We assume uniform traffic for simplicity, and study the scaling of area spectral efficiencies (ASEs) as pico densities are increased, optimizing over transmit power and cell association bias.
Jonathan Ling +3 more
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Cooperative retransmission in heterogeneous cellular networks
2014 IEEE Global Communications Conference, 2014This paper studies spatiotemporal cooperation between base stations in the presence of interference in a heterogeneous cellular network. The focus of the paper is the cooperative retransmission scenario, where a set of randomly located base stations that are selected based on their average received powers, possibly belonging to different network tiers,
Gaurav Nigam +2 more
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Load Distribution in Heterogeneous Cellular Networks
IEEE Communications Letters, 2014This letter provides the distributions on the association region of a small-cell BS (sBS) and that of a macro-cell BS (mBS) in a two-tier heterogeneous cellular network (HCN) as functions of the power and density ratios between tiers. Computer simulation results confirm that the proposed distributions are quite accurate for a wide range of network ...
Young Jin Sang, Kwang Soon Kim
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CHetNet: crowdsourcing to heterogeneous cellular networks
IEEE Network, 2015Heterogeneous networking (HetNet) is a promising solution to meet the ever increasing demands of wireless applications. However, it is a significant challenge for mobile network operators to deploy HetNet at a large scale. To address this issue, this article discusses a new paradigm in which potential partners are encouraged to participate in ...
Ye Wang 0002, Xiaodong Lin 0001
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Cloud cooperated heterogeneous cellular networks
2013 International Symposium on Intelligent Signal Processing and Communication Systems, 2013This paper introduces a concept of cloud cooperated heterogeneous cellular network (C-HetNet) where small power pico base stations (BSs) overlaid on a macrocell are connected to cloud radio access network (C-RAN) to operate cooperatively with the macro BS.
Kei Sakaguchi +5 more
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Analysis of Coverage in Heterogeneous Cellular Networks
IEEE Communications Letters, 2016In this letter, we study the coverage of base stations (BSs) in heterogeneous cellular networks, where BSs with different transmit powers are randomly deployed. Specifically, the boundary of coverage is formulated analytically as the intersection of circles when a multiplicative bias is applied for BS association.
Woongsup Lee, Robert Schober
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Scheduling in heterogeneous cellular networks with mobility
2012 Information Theory and Applications Workshop, 2012We examine the scheduling problem in the context of heterogeneous cellular networks in the presence of mobility. We demonstrate that the QoS for users in a cellular network can be optimized using an interference-aware approach that is most effective at low Doppler frequency scenarios or a channel-aware approach that is most effective at higher low ...
Pooya Monajemi +2 more
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Cell planning for heterogeneous cellular networks
2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013Low-power base stations (BSs), such as pico BSs, femto BSs, and relay nodes, are introduced to the heterogeneous cellular networks to enhance coverage and improve system capacity. Compare with macro BS, low-power BS has much lower transmission power, smaller physical size and lower cost.
Wentao Zhao, Shaowei Wang 0001
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