'Frequency reuse' presentation slideshows

GSM

1.33k views • 81 slides

Cellular Wireless Networks

Cellular Wireless Networks. Chapter 10. Cellular Network Organization. Use multiple low-power transmitters (100 W or less) Areas divided into cells Each served by its own antenna Served by base station consisting of transmitter, receiver, and control unit Band of frequencies allocated

990 views • 77 slides

Cellular Wireless Networks

Cellular Wireless Networks. Example of a Cellular Wireless Network. Picture: http://www.scom.hud.ac.uk. 1G Cellular Networks. 1 st generation cellular networks are purely analog cellular systems. The transmission of data is sent via a continuously variable signal. 2G Cellular Networks.

1.05k views • 70 slides

Cellular Wireless Networks

Cellular Wireless Networks. Chapter 10. Cellular Network Organization. Use multiple low-power transmitters (100 W or less) Areas divided into cells Each served by its own antenna Served by base station consisting of transmitter, receiver, and control unit Band of frequencies allocated

720 views • 64 slides

EE360: Lecture 18 Outline Course Summary

EE360: Lecture 18 Outline Course Summary. Announcements Poster session tomorrow 5:30pm (3rd floor Packard) Next HW posted, due March 19 at 9am Final project due March 21 at midnight Course evaluations available; worth 10 bonus points Course Summary Promising Research Directions.

771 views • 60 slides

Chapter 3

Chapter 3. The Cellular Concept - System Design Fundamentals. I. Introduction. Goals of a Cellular System High capacity Large coverage area Efficient use of limited spectrum Large coverage area - Bell system in New York City had early mobile radio Single Tx, high power, and tall tower

839 views • 54 slides

604 views • 48 slides

Wireless Application Protocol

Wireless Application Protocol. Cellular Network. Introduction. Early mobile system objective was to achieve a large coverage using single high power antenna Impossible to reuse the same frequencies in the same coverage area.

524 views • 41 slides

688 views • 37 slides

EELE 5490, Fall, 2009 Wireless Communications

EELE 5490, Fall, 2009 Wireless Communications. Ali S. Afana Department of Electrical Engineering Class 4 Sep. 30 th , 2009. Fail of Iridium Satellite System. The system was originally to have 77 active satellites, and as such was named for the element iridium , which has atomic number 77.

533 views • 31 slides

Cellular Wireless Networks

Cellular Wireless Networks. Raj Jain Washington University Saint Louis, MO 63131 Jain@cse.wustl.edu These slides are available on-line at: http://www.cse.wustl.edu/~jain/cse473-05/. Overview. Overview of Cellular System PHY Issues in Cellular Systems Wireless Generations

553 views • 30 slides

Weiwei Wang a , Zihua Guo b , Jun Cai c , Xuemin(Sherman) Shen d , Changjia Chen a

Multiple Frequency Reuse Schemes in the Two-hop IEEE 802.16j Wireless Relay Networks with Asymmetrical Topology. Weiwei Wang a , Zihua Guo b , Jun Cai c , Xuemin(Sherman) Shen d , Changjia Chen a

465 views • 27 slides

MSc Mobile Computing Systems 1

MSc Mobile Computing Systems 1. Professor Rolando Carrasco BSc(Hons), PhD, CEng, FIEE R.Carrasco@wlv.ac.uk. Introduction (1). Mobile Computing Systems Types of wireless communication systems Cellular System Intra-cell/Inter-cell operation Frequency Re-use Channel Assignment Strategies

403 views • 24 slides

Computer Networks with Internet Technology William Stallings

Computer Networks with Internet Technology William Stallings. 13.3 Cellular Wireless Networks. Cellular Wireless Networks. Underlying technology for mobile phones, personal communication systems, wireless networking etc. Developed for mobile radio telephone

360 views • 24 slides

Computer Networks with Internet Technology William Stallings

Computer Networks with Internet Technology William Stallings. 13.3 Cellular Wireless Networks. Cellular Wireless Networks. Underlying technology for mobile phones, personal communication systems, wireless networking etc. Developed for mobile radio telephone

382 views • 24 slides

Wireless Communications: System Design

Wireless Communications: System Design. Dr. Mustafa Shakir. Evolution of wireless in Europe and the US can be summarized in the following diagrams:. Modern cellular standards. 1979: NTT (Japan), FDMA, FM, 25 kHz channels, 870-940 MHz 1983: AMPS (US), FDMA, FM, 30 kHz channels, 824-894 MHz

367 views • 23 slides

The Cellular Concept: System Design Fundamentals

The Cellular Concept: System Design Fundamentals. What if there is no power degradation for a transmitted signal? Transmission range is limited: the possibility of cellular concept Example: daily conversation by lowering voice, a room could accommodate more simultaneous conversations.

902 views • 21 slides

Clustering Based Fractional Frequency Reuse and Fair Resource Allocation in Multi-cell Networks

Clustering Based Fractional Frequency Reuse and Fair Resource Allocation in Multi-cell Networks. Weihuang Fu 1 , Zhifeng Tao 2 , Jinyun Zhang 2 , and Dharma P. Agrawal 1 1 Department of Computer Science, University of Cincinnati, Cincinnati, USA

412 views • 20 slides

Motivation

High Spectral Efficient and Flexible Next Generation Mobile Communications Simon Plass, Stephan Sand, Mikael Sternad, and Arne Svensson. Motivation. What are the requirements and challenges for next generation communications systems?

299 views • 15 slides

LTE- Sim

LTE- Sim. 2012/5/17 ???. 1. N o open-source simulation platforms, which the scientific community can use to evaluate the performance of the entire LTE system, are freely available.

200 views • 5 slides