WIRELESS NETWORKS AND MOBILE IP
WIRELESS NETWORKS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Break before make
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Make before make
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Both A and B
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None of these
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Detailed explanation-1: -Soft Handoff − In soft handoff, at least one of the links is kept when radio links are added and removed to the mobile station. This ensures that during the handoff, no break occurs. This is generally adopted in co-located sites. It is a “make before break” policy.
Detailed explanation-2: -Hard handover. Is one in which the channel in the source cell is released and only then the channel in the target cell is engaged. Thus the connection to the source is broken before or ‘as’ the connection to the target is made-for this reason such handovers are also known as break-before-make.
Detailed explanation-3: -Soft handoff is also known as ‘Make before Break’ as the new connection is established before the termination of previous connection. The decision-making process of handoff may be centralized or decentralized[5]. The handoff decisions can be classified into: Network controlled: In a network-
Detailed explanation-4: -Handoff can be categorized as hard handoff, soft handoff, and softer handoff. The hard handoff can be further divided into intrafrequency and interfrequency hard handoffs. During the handoff process, if the old connection is terminated before making the new connection, it is called a hard handoff.