Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
A DETAILED STUDY ON FEMTOCELL
SUBMITTED BY :
SPANDAN MUKHOPADHYAY (12000312109)
MD. GHOLAM SARWER (12000312057)
SATYAM SIN...
Introduction
 A femtocell is a small cellular base station designed for use in residential or small business
environments...
History On Femtocell
 The first interest in femtocells started around 2002 when a group of engineers at Motorola
were inv...
How does femtocell works ?
4
Why Femtocell ?
• Technical motivation
• Reduced separation distance between transmitter and receiver
• Interference is is...
Definition & Differentiation Of Femtocell
6
Femtocell Picocell Wifi
Site Rental customer operator customer
Installation cu...
Features of Femtocell
• Operates in the licensed spectrum
• Uses fixed broadband connection for backhaul
• It is managed b...
Users Benefits
- Reduced “in home” call charges.
- Improved indoor coverage (Base station in your bedroom).
- Continued us...
Operators’benefits
- Improves coverage.
- Reduces backhaul traffic.
- Provides capacity enhancements.
- Reduces churn.
- E...
Advantages Of Femtocell
1. Low Device Cost:
 efficient, low-cost power amplifiers, highly sensitive receivers, flexible c...
Conclusion
• Femtocell extends the high-data rate service coverage of UMTS to indoor environment
• Higher spectral efficie...
12
THANK YOU
Upcoming SlideShare
Loading in …5
×

ppt on femtocell

21,173 views

Published on

ppt on femtocell

Published in: Engineering
  • Be the first to comment

ppt on femtocell

  1. 1. A DETAILED STUDY ON FEMTOCELL SUBMITTED BY : SPANDAN MUKHOPADHYAY (12000312109) MD. GHOLAM SARWER (12000312057) SATYAM SINHA (12000312088) VIKRAM KUMAR (12000312123) SUMIT PAREEK (12000312116) DHIRAJ KUMAR SARRAF (12000312040) 1ECE-1(y)
  2. 2. Introduction  A femtocell is a small cellular base station designed for use in residential or small business environments  It connects to the service provider’s network via broadband (such as DSL or cable) and typically supports 2 to 5 mobile phones in a residential setting  A femtocell allows service providers to extend service coverage inside of your home - especially where access would otherwise be limited or unavailable - without the need for expensive cellular towers  It also decreases backhaul costs since it routes your mobile phone traffic through the IP network  A femtocell is sometimes referred to as a “home base station”, “access point base station”, “3G access point”, “small cellular base station” and “personal 2G-3G base station” 2
  3. 3. History On Femtocell  The first interest in femtocells started around 2002 when a group of engineers at Motorola were investigating possible new applications and methodologies that could be used with mobile communications.  A couple of years later in 2004, the idea was beginning to gain some momentum and a variety of companies were looking into the idea.  With the idea gaining momentum, and many more companies investigating femto cell technology, the Femto Forum was set up in July 2007. Its aim was to promote the wide- scale adoption of femtocells. With mounting industry pressure to be able to deploy femto cell technology, the Femto Forum also played a coordinating role in ensuring that the standards were agreed and released as fast as possible. 3
  4. 4. How does femtocell works ? 4
  5. 5. Why Femtocell ? • Technical motivation • Reduced separation distance between transmitter and receiver • Interference is isolated by building structure • Limited number of users • Business motivation • Half of voice calls and a majority of data traffic originate indoor • Operators expand network capacity and coverage without much investments on infrastructure. • Subscribers get better radio service at low price 5
  6. 6. Definition & Differentiation Of Femtocell 6 Femtocell Picocell Wifi Site Rental customer operator customer Installation customer operator customer Electricity Bill customer operator customer Radio Planning no (local) yes (prior & global) no Backhaul Connection via customer dedicated via customer Macrocell Interaction not (yet) yes not applicable Transmission Power < 23dBm 23-30dBm 20dBm Access Rights mainly closed public closed Handover possible yes vertical Photo
  7. 7. Features of Femtocell • Operates in the licensed spectrum • Uses fixed broadband connection for backhaul • It is managed by the NAP • The backhaul service provider may be different from NAP/NSP • Principally intended for home and SOHO • Lower cost than PicoBS • Smaller coverage (low power) than PicoBS • Smaller number of subscriber (ten or less) than PicoBS • Higher density 7
  8. 8. Users Benefits - Reduced “in home” call charges. - Improved indoor coverage (Base station in your bedroom). - Continued use of current handset. - Reduced battery drain. - Fast/Higher performance 3G services. 8
  9. 9. Operators’benefits - Improves coverage. - Reduces backhaul traffic. - Provides capacity enhancements. - Reduces churn. - Easy Radio Coverage for rural areas. - Where there is ADSL you can have mobility. - Stimulates 3G usage. - Addresses the fixed mobile convergence market with a highly attractive and efficient solution. 9
  10. 10. Advantages Of Femtocell 1. Low Device Cost:  efficient, low-cost power amplifiers, highly sensitive receivers, flexible channel bandwidth, reliable RF filters; low cost and low power implementation; etc. 2. System Interference Management:  minimize interference to macro (and vice versa); minimize interference to adjacent femtos; coping with unplanned rollouts; coverage estimation, interference cancellation; etc. 3. Femtocell Capacity Maximization:  link and access management (handover, admission control, resource management, load balancing and flow control); dynamic bandwidth allocation and sharing; etc. 4. Backhaul Issues:  wired or wireless backhaul, reducing signaling load, QoS provisioning and traffic priorization, joint access and backhaul design; etc. 5. Viable System Architecture:  control & data planes, access control, authentication, local breakout, efficient forwarding, seamless mobility, zero-config, etc. 10
  11. 11. Conclusion • Femtocell extends the high-data rate service coverage of UMTS to indoor environment • Higher spectral efficiency due to short range and well isolation • With massive deployment, a solution for ubiquitous mobile broadband access • A range of case studies verify CSG femtocell operation • Interference locally distributed • Flexible spectrum scheme is efficient to reduce uplink outage rate • Mobile teletrauma use case: • With a certain level of femtocell penetration ratio, the service can be delivered with sufficient low outage rate • At least an order of magnitude reduction in service outage rates when femtocells are utilized, compared with macrocell only case • Downlink direction study is also interesting and beneficial to complete the use case study. In the long term, the research direction is LTE femtocell. 11
  12. 12. 12 THANK YOU

×