Major objective of this lecture is to explain Security in Wireless Sensor Networks. Security is critical for such networks deployed in hostile environments. Most sensor networks actively monitor their surroundings, and it is often easy to deduce information other than the data monitored. Here briefly describe why Security Complicated in WSN, Guiding Principles for Securing WSN, Evaluation Metrics to Security Scheme and Issues with High-Level Security Mechanisms.
basic objective of this lecture is to describe WSN security issues. And major focus on why high security level is needed. Here briefly discuss on WSN security AND survivability requirements. Security requirements are: Confidentiality, Authentication, Non-repudiation, Integrity, Freshness, Forward and Backward secrecy. Survivability requirements are: Reliability, Availability, Energy efficiency etc.
General objective of this lecture is to describe Wireless LAN in Wireless Communication. Wireless communication is one of the fastest-growing technologies. Wireless LAN provides wireless network communication over short distances using radio or infrared signals instead of traditional network cabling. Here also focus on four prominent wireless technologies: Bluetooth, Wi-Fi, WiMAX and third-generation or 3G cellular wireless.
principle purpose of this lecture is to explain Basic Components in Wireless Sensor Networks. A sensor network is an infrastructure comprised of sensing (measuring), computing, and communication elements. The results acquired by a regional network is provided to the administrator. Here briefly describe four basic components in a sensor network and its various Applications, like Military applications, Environmental applications, Health applications, Home applications, Commercial applications etc. Finally focus on Sensor Node Structure.
Wireless Sensor Networks are an infrastructure comprised of sensing (measuring), computing, and communication elements. The results acquired by a regional network is provided to the administrator. This lecture explain four basic components in a sensor network: An assembly of distributed or localized sensors; An interconnecting network (usually, but not always wireless-based); A central point of information clustering; and A set of computing resources at the central point (or beyond) to handle data correlation.
Principle objective of this lecture is to overview of Wireless Ad-Hoc Networks. Wireless ad-hoc network is a collection of mobile nodes with some sort of dynamic network infrastructure building a temporary network. Like networks no central server or perhaps base station for delivering connectivity, and all network intelligence have to be placed inside the mobile user devices. Here also explain Routing in Ad-Hoc Networks and DSDV Packet Process Algorithm.
Basic objectivbe of this lecture is to derive 5G Wireless Communication Networks. The main objective of 5G is to support the mobile data traffic at extremely high speed. Data rate can be measured in several different ways: Aggregate data rate, Edge rate, Latency, Energy and Cost. A significant cost consideration for 5G, than in 4G a result of the new BS densities along with increased bandwidth, is the backhaul through the network edges into the core. Here also focus on Challenges of massive MIMO and METIS 5G Architecture.
General purpose of this lecture is to describe 4G Mobile Communications; major focus on WiMAX and LTE. This lecture focus on overview of IEEE 802.22 Standard and comparison of 3G and 4G. Wi-MAX is the Worldwide Interoperability for Microwave Access, is a technology aimed at providing wireless data over long distances. It is based on the IEEE 802.16 standard. Here also describe on WiMAX applications and missions, Long Term Evolution (LTE) and Architecture of LTE.
Major focus of this lecture is to explain 4G Mobile Communications history and system. here also focus on OFDMA Based WiMAX Network. We consider a single cell in a WiMAX network which has a base station and multiple subscriber channels. Each subscriber section serves multiple associations. Admission control can be used at each customer station to limit the quantity of ongoing connections as a result of that subscriber section. At each customer station, traffic from most users for uplink associations are aggregated right single queue.
This lecture briefly discuss features of Long Term Evolution (LTE). The Long Term Evolution- Advanced is 4G wireless service proposed by Third generation Partnership Project (3GPP). In 2009 4G LTE started its commercial service in Scandinavia. Three important features of LTE are: femtocell deployment, OFDMA-based physical layer access and MIMO. Here also focus on how LTE provides OFDMA-based physical layer access.