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ANALYSIS OF LTE VS. WIMAX
ENSC 427, SPRING 2013, TEAM #08
NG Jackie, 301056206 (jna10@sfu.ca)
ZHU Wangyi (Nick), 301159678 (wangyiz@sfu.ca)
RAJARATANAM Sutharsan, 200081017 (srajara1@sfu.ca)
OVERVIEW
INTRODUCTION
TOPOLOGY
SIMULATION RESULTS
SUMMARY
REFERENCES
2
INTRODUCTION
GOAL
Compare performance of the leading 4G technologies,
WiMAX and LTE for mobile users by the speed and
quality of watching a HQ Movie
MOTIVATION
LTE gained more support even though both LTE and
WiMAX are both 4G Technology. Determine the
strength and weakness of WiMAX and LTE
TOOL
OPNET 16.0 will be used to simulate the scenarios
3
INTRODUCTION – BASIC INFO
WHAT is LTE Exactly?
Shortened for Long-Term Evolution
Standard for wireless communication with new DSP
Technologies
Use OFDMA for downlink, SC-FDMA for uplink
WHO?
Proposed by NTT DoCoMo in 2004
Documented and Standardized by 3GPP
WHEN?
Release 8 standardized by 3GPP in Dec 2008
4
INTRODUCTION – BASIC INFO
LTE STATS
Download speed up to 326.4 Mb/s
Upload speed up to 86.4 Mb/s
Bandwidth of 20 MHz
5
INTRODUCTION – BASIC INFO
LTE COMPONENTS IN OUR TOPOLOGY
User Equipment (UE)
Evolved Node B (eNB)
Evolved Packet Core (EPC)
6
INTRODUCTION – BASIC INFO
LTE COMPONENTS – Cont’d
User Equipment (UE)
Clients, connected wirelessly to eNB
Creates a bearer when connection established with
EPC
Bearer
A term to describe how UE data transfer across the network
7
INTRODUCTION – BASIC INFO
LTE COMPONENTS – Cont’d
Evolved Node B (eNB)
Connected to UE and EPC
Admission Control
Determine if Guaranteed Bit Rate (GBR) and allocate
available resources
8
INTRODUCTION – BASIC INFO
LTE COMPONENTS – Cont’d
Evolved Packet Core (EPC)
Create, Activate, and Manage the bearer created
when connection established with UE
MME and Session Management functions
9
INTRODUCTION – BASIC INFO
WiMAX
Worldwide Interoperability for Microwave Access
Uplink and Downlink both utilize Orthogonal Frequency
Division Multiplexing (OFDM) modulation scheme.
A radio sector theoretical aggregate mobile speed of up to
70 Mb/s (up to 1Gb/s for fixed stations with recent updates)
Bit error rate (BER) increases with distance thus
significantly reducing bit rate at larger distances
(maximum range of 50km)
Can be used for broadband connections, cellular backhaul,
hotspots etc.
Inherently supports technologies such as Quality of Service
(QoS) and Multicasting that make “triple-play” service
offerings possible. 10
INTRODUCTION – BASIC INFO
WiMAX Components
Base Station (BS)
Send/Receive signal from cloud and send/receive it to
the subscriber station
Allocate bandwidth, control Quality of Service
Subscriber Station (SS)
Send/Receive signal from Base Station and
send/receive to clients through WLAN or Ethernet
connection
Known as Client in our Topology
11
WIMAX NETWORK TOPOLOGY
12
TOPOLOGY
Currently 4 Topologies:
Single-Cell LTE Topology
Multi-Cell LTE Topology
Single-Cell WiMAX Topology
Multi-Cell WiMAX Topology
Single Cell
1 Base Station (WiMAX)
1 eNode B (LTE)
Multi-Cell
More than 1 (Currently 3 Base Station / eNode B)
13
SIMULATION RESULTS - HOW
Perform Simulations with UE / SS at certain
location from their respective tower
Find the optimum performance range for both
LTE and WiMAX
Compare the results according to previously
mentioned parameters
14
SINGLE-CELL LTE TOPOLOGY
15
MULTI-CELL LTE TOPOLOGY
16
SINGLE-CELL WIMAX TOPOLOGY
17
MULTI-CELL WIMAX TOPOLOGY
18
MULTI-CELL WIMAX TOPOLOGY
19
SIMULATION RESULTS
Compare Results of LTE and WiMAX based on:
Video Packet Loss
End to End Delay
Video Packet Jitter
Throughput
20
SIMULATION RESULTS - CURRENT
NO CONCLUSIVE DATA
21
SUMMARY
CURRENT PROGRESS
Able to run the necessary simulations
Further optimize topology
Continue to analyze the produced data to ensure
errorless and logical
22
SUMMARY – FUTURE WORK
Continue to Optimize Topology
Eg. Location of equipments, Settings of equipments
Increase distance between UE / SS to their
respective eNode B / BS
Increase the amount of clients to their respective
technology
23
REFERENCE
[1] M. Torad, A.E. Qassas and H.A. Henawi, "Comparison between LTE and WiMAX based on System Level Simulation Using OPNET modeler", 28th National Radio Science Conference, Apr. 2011, pp 1-9. [Online] Available: IEEE Xplore, http://ieeexplore.ieee.org/Xplore/guesthome.jsp [Accessed: 16 Feb. 2013].
[2] A. Checko, L. Ellegaard, and M. Berger, Ò Capacity planning for Carrier Ethernet LTE backhaul networksÓ , Wireless Communications and Networking Conference (WCNC), University of Denmark, April 2012, pp 2741-2745. [Online] Available: IEEE Xplore, http://ieeexplore.ieee.org/Xplore/guesthome.jsp [Accessed: 15 Feb. 2013].
[3] L. Chen, W. Chen, B. Wang, X. Zhang, H. Chen and D. Yang, "System-Level Simulation Methodology and Platform for Mobile Cellular Systems", IEEE Communications Magazine, 2011, pp148-155, Vol 49 Issue 7. [Online] Available: IEEE Xplore, http://ieeexplore.ieee.org/Xplore/guesthome.jsp [Accessed: 16 Feb. 2013].
[4] A. Zakrzewska, M. S. Berger, and S. Ruepp, Ò Modeling Multistandard Wireless Networks in OPNETÓ ,OPNETWORK, Technical University of Denmark, 2011, pp 1-5. [Online] Available: Technical University of Denmark, http://www.dtu.dk/English/Service/ [Accessed: 15 Feb. 2013].
[5] Z.Abichar, J. M. Chang, and C. Y. Hsu, Ò WiMAX vs. LTE: Who Will Lead the Broadband Mobile Internet?Ó , IT Professional, 2010, pp 26-32,Vol 12 Issue 3. [Online] Available: IEEE Xplore, http://ieeexplore.ieee.org/Xplore/guesthome.jsp [Accessed: 16 Feb. 2013]. 24
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