Question

In: Computer Science

WiMax networks are built around the IEEE 802.16 protocol. True b. False Explain how calls are...

WiMax networks are built around the IEEE 802.16 protocol.

  1. True b. False

Explain how calls are handed off between cells.

Solutions

Expert Solution

WiMax networks are built around the IEEE 802.16 protocol:

Answer: (a) True

Description:

WiMax - Worldwide Interoperability for Microwave Access network comes in a group or family of broadband wireless communications standards. It is based on the IEEE 802.16 protocol.

Explain how calls are handed off between cells:

Handoff:

• A handoff or handover is the process of transferring an active call or ongoing call from one channel or cell to another channel or cell in connected network.

• Handoffs which are well-implemented provide uninterrupted service in a communication network to a caller or user.

Two types of Handoffs:

  • Hard Handoff
  • Soft Handoff

(1) Hard Handoff:

• In a hard handoff category, when the process of switching from one cell or base station to another occurs then an actual break in the connection happens. Before connecting a link to another cell, firstly radio link from the existing cell is broken but it is so quick that it cannot be noticeable by user.

• This procedure or policy is known as “break before make” policy. Hard handoff is sometimes also called inter-frequency handoff.

(2) Soft Handoff:

• In a soft handoff category, there is no break occurs while switching from one cell or base station to another. In this method, at least one of the links is always kept secured while adding or removing other radio links.

• This procedure or policy is known as “make before break” policy. Soft handoffs are generally established in co-located network sites.

Situations of Handoff triggering:

• An interference of calls with same frequency.

• A user with ongoing calls moves to another coverage cell.

• Transferring the services from one large micro-cell to another small micro-cell or vice versa.

• The number of subscribers or users of a particular cell reaches to its maximum capacity value.


Related Solutions

1. Product problems are classified as an external crisis. True False 2. Social networks form around...
1. Product problems are classified as an external crisis. True False 2. Social networks form around social objects. True False 3. Bonding social capital often occurs among people with similar values and goals—such as family and friends. True False 4. If you are interested in spreading NEW information to as many people as possible, but could only tell one person, it would be most advantageous to tell your best friend. True False
True or False? Wireless ad hoc networks are distributed networks that work without fixed infrastructures and...
True or False? Wireless ad hoc networks are distributed networks that work without fixed infrastructures and in which each network node is willing to forward network packets for other network nodes. 4. True or False? WEP is designed to protect linkage-level data for wireless transmission by providing confidentiality, access control, and data integrity, to provide secure communication between a mobile device and an access point in a 802.11 wireless LAN. 5. True or False? The WPA standard is aimed at...
Briefly explain two modes to convey information in the SNMP protocol in computer networks.
Briefly explain two modes to convey information in the SNMP protocol in computer networks.
True or False. Indicate whether the statement is true or false. If false, explain in the...
True or False. Indicate whether the statement is true or false. If false, explain in the space provided the statement why it is false, or simply correct the statement. Smooth muscle contraction is regulated by the autonomic nervous system. During exercise, the sympathetic nerves that innervate the smooth muscles of bronchioles and arterioles regulate the contraction of these smooth muscles to increase ventilation and cardiac output. 2. Multiple choice: Choose one best statement. An infant born prematurely has neonatal respiratory...
B. Theorems--True or False? For each proposition, considered independently: (a) State whether True or False. (b)...
B. Theorems--True or False? For each proposition, considered independently: (a) State whether True or False. (b) Then explain your answer. Define the important terms in your explanation. You may use graphs in your answers. B1. A country's potential output can increase while its actual output decreases. B2. China will likely surpass the United States in per-capita GDP before it surpasses the United States in GDP itself.
True or False. If false explain why it is false and explain what is meant by...
True or False. If false explain why it is false and explain what is meant by all parts of the statement. The nuclear localization is a post-translational modification.
Write TRUE if the statement is TRUE. If the statement is FALSE, write FALSE and explain...
Write TRUE if the statement is TRUE. If the statement is FALSE, write FALSE and explain why 3. The Commissioner of Internal Revenue may prescribe presumptive gross sales and receipts for a taxpayer when the latter fails to issue receipts and when he believes that the books or other records of the latter do not correctly reflect declarations in the return. 4. Jurisdiction is the power and authority of the court to hear, try, and decide a case. It can...
True or False (xvi) Device drivers are a part of user interface. (xvii) Star networks are...
True or False (xvi) Device drivers are a part of user interface. (xvii) Star networks are same as networks of computers used to process data about stars in the sky. (xviii) 1 petabyte equals 253 bits. (xix) Auditing software in the context of operating systems is a software that creates a software during an attack on a computer/computers, to defend the computer/computers. (xx) A dispatcher in the context of operating systems chooses the activities to consider for execution.
True or False (xi) There are multiple criteria for classifying computer networks. (xii) The only way...
True or False (xi) There are multiple criteria for classifying computer networks. (xii) The only way to create a larger computer network from bus networks is to connected them with a bridge. (xiii) File manager is a part of user interface. (xiv) Booting is the process of transferring the operating system from the main memory to the mass storage. (xv) 1 exabyte equals 250 kilobytes.
Is this statement true or false? Explain why it is true or false. Two firms, 1...
Is this statement true or false? Explain why it is true or false. Two firms, 1 and 2, can control their emissions of a pollutant according to the following marginal cost equations: MC1 = $1*q1 and MC2 = $1/2*q2, where q1 and q2 are the amount of emissions controlled by firm 1 and firm 2, respectively. In addition, each firm is currently emitting 100 units of pollution and neither firm is controlling its emissions. Assuming the control authority has concluded...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT