Narrowband Multiple Access Systems

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Questions and Answers

1

The term narrowband is used to relate the bandwidth of a single channel to the expected coherence bandwidth of the channel.

2

In a narrowband multiple access system, the available radio spectrum is divided into a large number of narrowband channels.

3

In narrowband FDMA, a user is assigned a particular channel which is not shared by other users in the vicinity, and if FDD is used (that is, each channel has a forward and reverse link), then the system is called FDMAIFDD.

4

Narrowband TDMA, on the other hand, allows users to share the same channel but allocates a unique time slot to each user in a cyclical fashion on the channel, thus separating a small number of users in time on a single channel. Signup and view all the answers

5

For narrowband TDMA, there generally are a large number of channels allocated using either FDD or TDD, and each channel is shared using TDMA. Signup and view all the answers

In narrowband FDMA, how are channels allocated?

Each user is assigned a particular channel not shared by other users (A) Signup and view all the answers

What characterizes narrowband TDMA?

Users share the same channel but are allocated unique time slots (B) Signup and view all the answers

What is the key feature of narrowband multiple access systems?

The available radio spectrum is divided into a large number of narrowband channels (A) Signup and view all the answers

What distinguishes narrowband FDMA from narrowband TDMA?

Each user is assigned a particular channel not shared by other users in the vicinity (FDMA), while users share the same channel but are allocated unique time slots (TDMA) (C) Signup and view all the answers