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Algorithms for Enhanced Inter-Cell Interference Coordination
(eICIC) in LTE Het Nets
Abstract
The success of LTE heterogeneous networks (HetNets) with macrocells and picocells critically depends
on efficient spectrum sharing between high-power macros and low-power picos. Two important
challenges in this context are: 1) determining the amount of radio resources that macrocells should offer
to picocells, and 2) determining the association rules that decide which user equipments (UEs) should
associate with picos. In this paper, we develop a novel algorithm to solve these two coupled problems in
a joint manner. Our algorithm has provable guarantee, and furthermore, it accounts for network
topology, traffic load, and macro-pico interference map. Our solution is standard compliant and can be
implemented using the notion of Almost Blank Subframes (ABS) and Cell Selection Bias (CSB) proposed
by LTE standards. We also show extensive evaluations using RF plan from a real network and discuss
self-optimized networking (SON)-based enhanced inter-cell interference coordination (eICIC)
implementation.
Existing system
The success of LTE heterogeneous networks (HetNets) with macrocells and picocells critically depends
on efficient spectrum sharing between high-power macros and low-power picos. Two important
challenges in this context are: 1) determining the amount of radio resources that macrocells should offer
to picocells, and 2) determining the association rules that decide which user equipments (UEs) should
associate with picos.
Proposed system
In this paper, we develop a novel algorithm to solve these two coupled problems in a joint manner. Our
algorithm has provable guarantee, and furthermore, it accounts for network topology, traffic load, and

2. macro-pico interference map. Our solution is standard compliant and can be implemented using the
notion of Almost Blank Subframes (ABS) and Cell Selection Bias (CSB) proposed by LTE standards. We
also show extensive evaluations using RF plan from a real network and discuss self -optimized
networking (SON)-based enhanced inter-cell interference coordination (eICIC) implementation.
SYSTEM CONFIGURATION:-
HARDWARE CONFIGURATION:-
 Processor - Pentium –IV
 Speed - 1.1 Ghz
 RAM - 256 MB(min)
 Hard Disk - 20 GB
 Key Board - Standard Windows Keyboard
 Mouse - Two or Three Button Mouse
 Monitor - SVGA
SOFTWARE CONFIGURATION:-
 Operating System : Windows XP
 Programming Language : JAVA
 Java Version : JDK 1.6 & above.