COMPUTER FUNDAMENTALS

Detailed explanation-1: -What is a borrowing strategy in fixed channel assignments? Explanation: In borrowing strategy, a cell is allowed to borrow channels from a neighbouring cell if all of its own channels are already occupied.

Detailed explanation-2: -In case if all the channels in that cell are used, then the cell is blocked. such a situation the subscriber does not get service. Borrowing techniques are used from an adjacent cell if all of its channels are occupied. This method is called as borrowing strategies.

Detailed explanation-3: -In dynamic channel assignment strategy, voice channels are not allocated permanently. Entire pool of frequency channels lies with MSC and each time a call request is made, the serving base station requests a channel from the MSC. Switch then allocates a channel to the requested cell following a algorithm.

Detailed explanation-4: -Channels that are candidates for borrowing are available channels nominally assigned to one of the adjacent cells of the acceptor cell. If more than one adjacent cell has channels available for borrowing, a channel is borrowed from the cell with the greatest number of channels available for borrowing.

Detailed explanation-5: -Channel borrowing schemes are the various methods adopted in order to reduce the call dropping or blocking rates of a cell in a mobile cellular network. The major aim of frequency borrowing is to improve cell capacity utilization and also reduce blocking probability of a cellular network.