Communication network Group project

Let’s talk about 5G!

Group Members :R96034026 Shin–Tzu,ChengR96031086 Chen–Hsun,HoR96031109 Chien–Wen,Lo

Professor :Kuang – Chiu, Huang

Content

• Introduction

• Dilemma for 4G to breakthrough

• Possible 5G Techniques

• Applications of 5G

Introduction

Background

• The demand for high speed connection will be much more urgent

• obstacles to overcome

①signal interference

②backhaul solution

③connection of heterogeneous networks

Evolution of Wireless NetworkGeneration 1G 2G 3G 4GDesign began

1970 1980-1985 1990 2000

Implementation

1984 1991-1999 2002 2010

Data Bandwidth

1.9Kbps

14.4Kbps 2Mbps 200 Mbps

Speed 14.4Kbps(peak)

56 Kbps to 115 Kbps

5.8Mbps to 14.4Mbps

100 Mbps to 1Gbps

Standards AMPS 

GSM(2G)GPRS(2.5G)TDMACDMA

CDMA 2000WCDMAHSDPA(3.5G)

Wi-MaxLTEWi-Fi

Technology Analog cellular technology

Digital cellular technology

Broad bandwidth CDMA,IP technology

Unified IP and seamless combination of broadband,LAN,WAN,WLAN

Evolution of Wireless Network

Generation 1G 2G 3G 4G

Multiplexing FDMA TDMA,CDMA

CDMA CDMA

Switching Circuit Circuit Packet,Circuit for air interface

All packet

Core network PSTN PSTNPacket network

Internet

Service

Analog voice

Digital voice , Higher capacity packetized data

Integrated high quality audio,video and data

Dynamic Information access, Wearable devices

Possible 5G Techniques

4G

OFDMA 、 SDR 、 MIMOFast moving transmission capacity =

100MBpsStationary state capacity = 1GBpsCellular mobile communication systems

5G

Upgrade 100-1000 times than 4GConnect billons of devices in same timeD2DmmWaveMassive MIMOSmarter devicesM2M

1.Device-centric architectures

Need additional spectrumCentralized basebandCoMP

2. Millimeter wave (mmWave)

To repurpose or refarm spectrumTo share spectrum utilizing28-30, 60, 71-76, 81-86, 92-95 GHz

3. Massive MIMOHaving many more base station antennas

4. Smarter devices

D2DLocal cachingAdvanced interference rejection

5. Native support for machine-to-machine

A massive number of connected devicesVery high link reliabilityLow latency and real-time operation

Application of 5G

Why We Need 5G ?

● IoT● 4K Video Stream● Alternative Solution of Last Mile

● Internet of Internets● Every things on the I

nternet

IoT (Internet of Things)

IoT (Internet of Things)

Devices Growing Rapidly

IoT (Internet of Things)

IoT helps people collect Data, and then Improve Human’s live.

4K Video Stream

● Every thing on the Cloud --> HD Video Streamo 4K Streaming : 14 Mbpso 8K Streaming : 18 Mbps

Alternative Solution of Last Mile

● The Physical Last Mile is not Necessary.

● The Operators-builded Wireless network is Everywhere