Dhanalakshmi College of Engineering, Chennai. EC Wireless Networks WIRELESS NETWORK: Unit I MEDIUM ACCESS ALTERNATIVES SESSION. EC wireless Networks VIII Semester ECE EC – Wireless Networks VIII Write short notes on collision mechanism in No persistent CSMA Protocol?. ECWIRELESS NETWORKS. is unique about voice voice oriented wireless network? write short notes on i> SMS in GSM ii>RAKE receiver.

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Discuss the interference handling mechanism adopted in Bluetooth technology with all other ISM band technologies. List the units components wierless involved in setting up a call.

List the five types of logical channels in Bluetooth. A MANET notew ad hoc networks consists of a number of mobile devices that come together to form a network as needed, without any support from any existing Internet infrastructure or any other kind of fixed stations.

The packet length is large in LANs. Explain the key features of routing protocol in WSN and discuss any two energy efficient routing protocols.

EC Wireless Networks – Study Material – Unit I | Devasena A. –

Click here to sign up. List the categories of attacks. Mention the key features of IS 95 systems. Skip to main content. MSC A checks if ndtworks MS has made too many handoffs recently this is to avoid, for example, numerous handoffs between BS1 and BS2 a where the MS is moving within the overlapped area or if intersystem trunks are not available.

List the challenges faced by WLAN industry. What is the frequency band and channel bandwidth specification of WiMax Standard?


So, wirelss care wirelss needed in packet collisions. What are hybrid protocols? Explain MAC layer challenges in wireless sensor networks in detail.

List the two major states in the operation of Bluetooth. That is, if no channel is available, the handoff is blocked and the call is held on the current channel in the old cell until the call is completed or when the failing link is no longer available. List the four layers involved in SMS. What type of coding separates these channels from one another?

Mention some key factors that contribute to security problems in wireless networks. These resources are used for data services which does not require severe delay.

Explain the different types of wireless sensor networks in detail. Authentication of a subscriber basically implies making sure that, the user is genuine.

ALOHA-based wireless random access technique. List the advantages of CDMA. Explain the source networls on- demand routing protocols in ad- hoc networks in detail. Explain the source initiated routing protocols for ad hoc networks in detail. Determine the transfer time of a 20 kB file with a mobile data network with the transmission rate of 10 Kbps.

There is a constraint on where to place an access point on the wireless environment. Dhanalakshmi College of Engineering, Chennai. Explain in detail the architecture of the 2G GSM system. From a handoff perspective it is important that, a free channel is available in a new cell whenever handoff occurs, so that undisrupted service is available. Electronics and Communication Engineering Notes all the semester are available here.


Explain the architecture and MAC layer details of Bluetooth systems. Comments Useful to us. In ratio channels, collision of two packets may not destroy both packets. After sensing the channel, the terminal starts another sensing after sometime. Explain in detail roaming support in wireless network.

What is meant by NAM? Where they are physically located and why we need them? Departments are Networkss about object oriented programming and data structures, linear data structures, microprocessor, digital communications and transmission lines and Guide waves.

What are the noyes used in AMPS? List the groups made by random access methods for mobile data services? Thus QOS is known as wire line quality.

Explain the architecture, location and handoff management in GPRS network. List the logical channels provided by L2CAP. Enter the email address you signed up with and we’ll email you a reset link. April Part B 1. Draw the MAC management frame format. Help Center Find new research papers in: Every time the MS has to communicate with a BS, it must correctly identify itself.


Compare hierarchical routing and flat routing in sensor networks. Secure system can be defined as one where as intruder has to spend an unacceptable amount of time and effort in interpreting the system. What is meant by self jamming? Explain the Nteworks Max layer in detail. Explain in detail about IEEE