Distributed Base Station Processing in the Uplink of Cellular Networks

Energy-efficient and reliable data transmission is a challenging task in wireless relay networks (WRNs). Energy efficiency in cellular networks has received significant attention because of the present need for reduced energy consumption, thereby maintaining the profitability of networks, which in turn makes these networks “greener”. The urban cell topography needs more energy to cover the total area of the cell. The base station does not cover the entire area in a given topography and adding more number of base stations is a cost prohibitive one. Energy-efficient relay placement model which calculates the maximum cell coverage is proposed in this work that covers all sectors and also an energy-efficient incremental redundancy-hybrid automatic repeat request (IR-HARQ) power allocation scheme to improve the reliability of the network by improving the overall network throughput is proposed. An IR-HARQ power allocation method maximizes the average incremental mutual information at each round, and its throughput quickly converges to the ergodic channel capacity as the number of retransmissions increases. Simulation results show that the proposed IR-HARQ power allocation achieves full channel capacity with average transmission delay and maintains good throughput under less power consumption. Also the impact of relaying performance on node distances between relay station and base station as well as between user and relay station and relay height for line of sight conditions are analyzed using full decode and forward (FDF) and partial decode and forward (PDF) relaying schemes. Compared to FDF scheme, PDF scheme provides better performance and allows more freedom in the relay placement for an increase in cell coverage.

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Effect of the Base Station Antenna Beam Tilting on Energy Consumption in Cellular Networks

2010 IEEE 72nd Vehicular Technology Conference - Fall ◽

10.1109/vetecf.2010.5594153 ◽

2010 ◽

Cited By ~ 7

Author(s):

B. Badic ◽

T. O'Farrell ◽

P. Loskot ◽

J. He

Keyword(s):

Energy Consumption ◽

Cellular Networks ◽

Base Station ◽

Antenna Beam ◽

Beam Tilting

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Performance of CDMA cellular networks with base-station antenna arrays

Lecture Notes in Computer Science - Mobile Communications Advanced Systems and Components ◽

10.1007/3-540-57856-0_9 ◽

1994 ◽

pp. 87-100 ◽

Cited By ~ 7

Author(s):

Ayman F. Naguib ◽

Arogyaswami Paulraj

Keyword(s):

Cellular Networks ◽

Antenna Arrays ◽

Base Station

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Handoff Management in Macro-Femto Cellular Networks

Paving the Way for 5G Through the Convergence of Wireless Systems - Advances in Wireless Technologies and Telecommunication ◽

10.4018/978-1-5225-7570-2.ch009 ◽

2019 ◽

pp. 227-249

Author(s):

Muhammad Faheem Mustafa ◽

Ayaz Ahmad ◽

Raheel Ahmed

Keyword(s):

Cellular Networks ◽

Base Station ◽

Data Traffic ◽

Core Network ◽

Handoff Management ◽

High Data ◽

Cell Network ◽

Network Operation ◽

Comprehensive Survey ◽

Time Required

With the rapid increase in data traffic and high data rate demands from cellular users, conventional cellular networks are becoming insufficient to fulfill these requirements. Femto cells are integrated in macro cellular network to increase the capacity, coverage, and to fulfill the increasing demands of the users. Time required for handoff process between the cells became more sensitive and complex with the introduction of femto cells in the network. Public internet which connect the femto base station with the mobile core network induces higher latency if conventional handoff procedures are also employed in macro-femto cell network. So, handoff process will become slower and network operation will become insufficient. Some standards, procedures, and protocols should be defined for macro-femto cell network rather than using existing protocols. This chapter presents a comprehensive survey of handoff process, types of handoff in macro-femto cell network, and proposed methods and schemes for frequent and unnecessary handoff reduction for efficient network operation.

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