Wireless Communication (CBSE (UGC) NET)

Which of the following is a forward logical channel used in CDMA technique for the transmission of user and signalling information to a specific mobile station during a call?

Which of the following is the speech codec attribute that measures the time taken for an input sample to be processed at the encoder, transmitted and decoded at the decoder?

Which of the following standards of IEEE is supplementary to the MAC layer in 802.11 to promote world wide use of IEEE 802.11 WLAN?

The main objective of which of the following speech coding methods is to minimise a criterion which measures the dissimilarity between the original and reconstructed speech signals?

Which of the following functional entities of a GSM network contains the necessary hardware and software to enable and control the radio links with the mobile stations?

Which of the following is a basic security service that makes use of encryption to provide wireless networks within the same or similar privacy achieved by an unencrypted wired network?

Which of the following is an encryption algorithm used for GSM security and scrambles the user's voice and data traffic between the handset and the base station to provide privacy?

Which of the following vocoders used in some GSM networks requires higher efficiency and mapping and involves input blocks of 320 speech samples to encoded blocks of 260 bits?

In which of the following types of modulation in digital modulation is digital information transmitted through discrete frequency changes of a carrier wave?

Which of the following is a type of channel used in air interface in the one-point-to-many-points unidirectional control channel from BTS to MS?

In which of the following types of path loss models is communication conducted over extremely large cells spanning hundreds of kilometers?

Which of the following supplementary services of GSM network enables the subscriber to interrupt an ongoing call and then subsequently re-establish the call?

Which of the following components of GSM PLMN architecture provides authentication and encryption parameters that verify the user's identity and guarantee the confidentiality of each cell?

Which of the following teleservices of GSM network consists of a message whose maximum length is 93 characters and can be broadcasted to all the users who are in a particular geographical region?

Which of the following components of a transmitter holds input as the content of various frequency carriers in order to obtain a representation of the OFDM signal in the time domain?