Performance evaluation of macro-assisted small cell energy savings schemes
نویسندگان
چکیده
Sleepmode techniques for small cells provide an effective means to mitigate excessive energy consumption and interference associated with ultra-dense small cell deployments. Nevertheless, such techniques can impact network performance in traditional deployments. In this paper, we show that in the particular case of macro-controlled small cells, such as in the Phantom Cell Concept (PCC) architecture, effective macro-assisted energy savings schemes can be employed to reduce the network energy consumption at practically no additional cost to the network and no hit to user quality of service (QoS). We introduce a heuristic algorithm suitable for real network operation, that minimizes the energy consumption in the small cell network by selecting the small cell offering the best signal-to-interference-plusnoise ratio (SINR). We apply this heuristic to three energy savings schemes realizable in the PCC architecture. These schemes,based on the macro-assisted user equipment (UE)-small cell connection establishment paradigm, are a downlink (DL) signalling based scheme, an uplink (UL) signalling based scheme and a database-aided scheme. We derive a power consumption model for a representative PCC small cell, which allows to quantify the percentage of energy consumed by a small cell in sleepmode with respect to a fully operational small cell for the three energy savings schemes considered. Furthermore, we characterize the connection latency associated with each scheme and evaluate the impact on system performance. System-level simulations show that, even with the associated connection delays, the macro-assisted energy-saving schemes can yield energy savings of more than 45 % while at the same time introduce throughput gains of up to 25 %.
منابع مشابه
Effective energy consumption parameters in residential buildings using Building Information Modeling
Building information modeling can help in predicting the energy efficiency in future based on dynamic patterns obtained by visualization of data. The aim of this study was to investigate the effective parameters of energy consumption using BIM technology which can evaluate the buildings energy performance. First, three forms of general states in the building were modeled to evaluate the propose...
متن کاملPerformance-Energy Aggregate metric based Scheduler (PEAS) for Smartphones
Since the introduction of Cyber Foraging, there has been a need for a scheme that partitions computation among client and server for optimal performance without compromising energy consumption. In previous schemes, scheduler was installed on server resulting in low adaptability to changing network and local computational resources. MARS, the first adaptive, online and lightweight scheduler, ach...
متن کاملEfficient Resource Allocation for Joint Operation of Large and Small-cell Heterogeneous Networks
This thesis investigates the downlink resource allocation problem in Orthogonal Frequency Division Multiple Access (OFDMA) Heterogeneous Networks (HetNets) consisting of macro-cells and small-cells sharing the same frequency band. Dense deployment of small-cells overlaid by a macro layer is considered to be one of the most promising solutions for providing hotspot coverage in future 5G networks...
متن کاملReducing Network Energy Consumption via Rate- Adaptation and Sleeping
We present the design and evaluation of two forms of power management schemes that reduce the energy consumption of networks. The first is based on adapting the rate of network operation to the offered workload, reducing the energy consumed when actively processing packets. The second is based on putting network components to sleep during idle times, reducing energy consumed in the absence of p...
متن کاملHierarchical Cell Structures for FRAMES Wideband Wireless Access
To provide sufficient capacity in traffic hot spots, small micro cells are needed to complement macro cells providing low cost large area coverage. These problems can be solved by using a mixed cell structure with macro cells for coverage and micro cells for capacity. Such a scenario, where coverage is provided from both macro and micro cells in a large part of the service area, is often referr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- EURASIP J. Wireless Comm. and Networking
دوره 2015 شماره
صفحات -
تاریخ انتشار 2015