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Politecnico di MilanoFacoltà di Ingegneria dell’Informazione
1 – Introduction
Wireless NetworksProf. Antonio Capone
Teacher
o Prof. Antonio Caponeo Office:
n Dip. di Elettronica e Informazionen 3rd floorn Room 335
o Tel: (02 2399) 3449o E-mail: [email protected] Web page: http://home.dei.polimi.it/capone/
o Office hours:n Tuesday 14.00-15.30
A. Capone: Wireless Networks 3
Course organizationo Wireless Networks is an integrated course (10
credits) that includes two courses of 5 credits:n Wireless Internet (WI)n Mobile Radio Networks (MRN)
o The two courses will run in parallel to avoid problems with the lecture schedule:
o 9 hours in the weekly schedule to be split among the two courses: n Tuesday 15:15-18:15 S.1.6 (MRN)n Wednesday 8:15-10:15 D0.3 (WI)n Thursday 8:15-10:15 L.26.13 (WI)n Friday 10:15-12:15 L.26.01 (MRN)n Note that the first part of the course is shared
among MRN and WIA. Capone: Wireless Networks 4
A. Capone: Wireless Networks 5
Class notes and bookso Papers and other material available
on the course web pageo Course slideso Links to material available on the
web pages of the two courses
A. Capone: Wireless Networks 6
Course home pagehttp://www.antlab.polimi.it/teaching-capone/wireless-networks
Goal of the course:Mobile Radio Networks
o Provide you the knowledge on the technology and network protocols of mobile radio networks, as well as on design and dimensioning methodology
A. Capone: Wireless Networks 7
o Mobile radio networksn Cellular architecturesn Radio planning and
networks designn Signaling and controln GSMS/GPRSn UMTSn LTE
A. Capone: Wireless Networks 8
Goal of the course:Wireless Internet
o Distributed wireless networks for Internet accessn Technologies and protocols for wireless
access networks (WiFi, WiMax, Bluetooth, Zigbee)
n Methodologies for the analysis of mechanisms and protocols for the access to wireless medium
n Distributed algorithms for the control and management of wireless networks
n Architectures and protocols for wireless multi-hop networks (ad hoc and sensor networks)
n Hands-on project on ad hoc networks
Pre-requisites
o Mobile radio networks:Communication networks basics, TCP/IP protocols, queuing theory basics (*), optimization basics (*).
o Wireless Internet:Communication networks basics, TCP/IP protocols, queuing theory basics (*).
A. Capone: Wireless Networks 9
A. Capone: Wireless Networks 10
Examso Exams are written and oralo In same cases (typically with a written exams
score between 21 and 27) the oral exam can be skipped (it's my decision you need to check on the pdf file if a final mark is proposed without oral).
o Also students can ask for a oral exam (but written exam score must be >= 15)
o Notes on the organization:n Written exam: same dates same time same room for all
courses
A. Capone: Wireless Networks 11
Examso MRN:
n Written exam: up to 30 points (duration 1:45)n Additional topic: up to 2 pointsn Oral exam: +/- 4 points
o WI:n Written exam: up to 30 points (duration 1:45)n Additional topic: up to 2 pointsn Oral exam: +/- 4 points
o WN:n Written exam: up to 30points (duration 2:15h)n Additional topic: up to 2 pointsn Oral exam: +/- 4 points
Mobile vs fixed vs internet
Per 100 inhabitantso 96.8 mobile subscribers o 43.4 internet users o 10.8 fixed-broadbando 47.2 mobile-broadband
Source: ITUData: 2015
A. Capone: Wireless Networks 17
Network planning tools
19
Main Planning Tools:
o Aircom Asseto Mentum Planeto Atoll FORSKo ATDIo WinPropo EDX Signal Proo CelPlano Siradelo PathlossMain Optimization
Engineso Actixo Capesso
A. Capone: Wireless Networks
Course program: MRNo Basic concepts
n Characterization of the mobile radio channeln Digital transmission on the wireless channeln Voice coding
o Introduction to mobile radio networksn Network architecture and functional
elementsn Multiple access techniques for the radio
channeln The concept of cellular coveragen The concept of frequency reusen Mobility management: cell selection,
location management, handoverA. Capone: Wireless Networks 21
Course program: MRN
o Capacity and radio planningn Mathematical models and algorithms for
coverage optimizationn Mathematical models and algorithms for
the static frequency assignmentn Dynamic channel allocation techniques
A. Capone: Wireless Networks 22
Course program: MRN
o Performance analysisn Models for the capacity estimation of
CDMA systemsn Teletraffic models for the performance
evaluation at call leveln Models for the dimensioning of cells and
location areas
A. Capone: Wireless Networks 23
Course program: MRN
o GSMn Architecture and interfacesn Physical and logical channelsn Transport in the fixed networkn Mobility management: localization and
handover n Telephone signalingn Signaling network architecture, signaling
protocols, network databases, call management procedures, mobility management procedures
A. Capone: Wireless Networks 24
Course program: MRN
o GPRSn Network architecture and protocols n Radio interfacen Medium Access Control (MAC)n Mobility managementn Interconnection to public and private IP
networks
A. Capone: Wireless Networks 25
Course program: MRN
o UMTSn Radio accessn Spreading and coding procedures for the
W-CDMAn Signaling and transport channelsn Power control proceduresn High Speed Packet data servicesn Core network
A. Capone: Wireless Networks 26
Course program: MRN
o Long Term Evolution (LTE)n System architecturen Radio interface (LTE)n Core network (EPC)n VOIP over LTE
A. Capone: Wireless Networks 27
A. Capone: Wireless Networks 28
Course program: WIo Technologies of wireless networks
n Wi-Fi (Architecture and protocols of WLAN, IEEE 802.11 specifications, multiple access, frame format, distribution system, mobility management, quality of service, mesh topologies),
n Bluetooth (Bluetooth specifications, picocells and scatternet, channel access, station states, network formation and signaling),
n WMAN (IEEE 802.16 – WiMax standards, network architecture, Point-To-Multipoint, MESH, channel access and scheduling)
n Zigbee (IEEE 802.15.4 and Zigbee alliance specifications, star-tree-mesh topologies, multiple access schemes to the wireless channel),
A. Capone: Wireless Networks 29
Course program: WI
o Network and transport layer. n Mechanisms for the mobility management at
network layer (Mobile IP, micro-mobility, application layer mobility).
n TCP over wireless (Management of channel impairments, end-to-end approaches, indirect TCP, link layer approaches, analytical models).
A. Capone: Wireless Networks 30
Course program: WIo Multiple access to the wireless channel
(models for the analysis) n Aloha protocol (infinite population model, finite
population model, single-buffer model, stabilization algorithms)
n CSMA (Carrier Sense Multiple Access), CSMA/CD (CSMA with Collision Detect), CSMA/CA (CSMA with Collision Avoidance),
n Polling schemes (models for calculating the waiting time, exhaustive service, gated service, limited service and round robin)
n Scheduling schemes for the radio access (signaling the queue status, channel state dependent scheduling, multi-channel scheduling).
A. Capone: Wireless Networks 31
Course program: WIo Ad hoc networks
n Basics of ad-hoc and MESH networks. n Medium access control schemes for ad hoc
networksn Routing for ad-hoc networks (proactive routing,
reactive routing, geographic routing, hybrid schemes).
n Broadcast and multicast in ad-hoc networks
A. Capone: Wireless Networks 32
Course program: WIo Sensor networks (basic concepts only)
n Application scenarios and differences with ad hoc networks
n Multiple access schemes and activity period management
n Energy efficient routingn Planning of sensor networks
A. Capone: Wireless Networks 33
Course programo Hand-on activities (prof.
Ilario Filippini)n Introduction to Netkitn Basic Topicsn Routing (OLSR e AODV) n Filtering and Shaping
(iptables and tc) n Projects
Netkit