The network capacity can be improved by using heterogeneous networks (HetNet) based on the long term evolution-advanced (LTE-A) standard. In general, HetNet comprises a blend of high power macro cells and low power nodes such as pico cells. The main aim of deploying small cells is to offload traffic from macro cells, to improve coverage in indoor areas and to increase the performance of users at the cell edge. Although there is a improvement in performance of the network, introduction of small cells lead to technical challenges like interference. The necessity of interference management is discussed in this work. A soft frequency reuse mechanism, which allocates resources in frequency domain is utilized in this work, which mitigates the interference significantly. © 2017 IEEE.

Vinoth Babu K

Department of Communication Engineering

School of Electronics Engineering

Vellore Campus

B. Malini

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

2017 International Conference on Communication and Signal Processing (ICCSP)

In recent years, green wireless communication has received much attention of industrial and academic communities due to its ability to create eco-friendly power efficient networks. To support anytime-anywhere seamless broadband services to all mobile subscribers, more number of macro base stations (BSs) have to be deployed. The macro BSs are power inefficient and also responsible for large carbon dioxide (CO2) emissions. The increase in the number of macro BSs will also increase the system cost and interference. The concept of multi-hop relay network has been widely discussed in long term evolution-advanced (LTE-A) standard, where the low power relay stations (RSs) are also deployed along with the macro BS to address the coverage and capacity issues. However, improper BS and RS deployment introduces power inefficiency, transmission delay, huge deployment cost and reduced throughput. Many of the conventional deployment schemes require iterative and complex computation. These deployment schemes are not eco-friendly and do not sustain for all channel conditions. In this work, we have proposed an eco-friendly, power-aware, fuzzy based BS and RS deployment algorithm to maximize the coverage and capacity of the system. Unlike the conventional methods, a new parameter called power consumption effectiveness ratio, which accounts for the greenness of the network is proposed and included in the fuzzy based decision making process along with the coverage ratio and traffic ratio. The simulation results prove that the proposed scheme is superior over the conventional uniform clustering and fuzzy based schemes. Further the proposed scheme is more suitable candidate for power-aware green radio communication. © 2016 Elsevier Inc.

Sustainable Computing: Informatics and Systems

Power-aware fuzzy based joint base station and relay station deployment scheme for green radio communication

The network capacity has to be maximized to support the ever-increasing data traffic demand. One of thepotential outcomes to enhance the network capacity is to enhance the spectral efficiency per unit area by expandingthe serving node densities. This is unreasonable on account of present Macro evolved node B (eNB) for which siteacquisition is expensive. The idea of heterogeneous network (HetNet) and multi-hop relay (MHR) are extremely prominentin long-term evolution (LTE) standard, where small cells are deployed along with Macro cell. Small cells aremore suitable solution for the coverage and traffic issues experienced by Macro cell users. Unfortunately, HetNetdeployment is not specified in any of the standards. The network operators have been managing tremendous investmentsfor cellular infrastructures. Because of the high cost and lack of radio resources, a precise and productive HetNetdeployment seems uttermost important. In this work, a flexible four-stage fuzzy logic-based HetNet deployment schemeis proposed, which deploys mix of Macro-eNB, Micro-eNB and relay station (RS) by considering capacity, coverage andcost factors. The proposed scheme identifies the required number of eNBs, their types and deployment locations tooffer the expected coverage in a cost-effective way. The simulation results demonstrate that our proposed scheme is moreflexible and offers improved performance in terms of system cost and power ratio than the conventional HetNet deploymentschemes. © 2016, King Fahd University of Petroleum &amp; Minerals.

Arabian Journal for Science and Engineering

A Flexible and Cost-Effective Heterogeneous Network Deployment Scheme for Beyond 4G

2016 International Conference on Communication and Signal Processing (ICCSP)

Stress measurement from wearable photoplethysmographic sensor using heart rate variability data

Wireless Personal Communications

Cell Selection and Resource Allocation for Interference Management in a Macro-Picocell Heterogeneous Network

IEEE Transactions on Wireless Communications

On Number of Almost Blank Subframes in Heterogeneous Cellular Networks

Soft frequency reuse based interference minimization technique for long term evolution-advanced heterogeneous networks

Journal	Data powered by Typeset2017 International Conference on Communication and Signal Processing (ICCSP)
Publisher	Data powered by TypesetIEEE
Open Access	0