Question

Which among the following statements is false about spectrum broker?

(a) Spectrum broker is also known as scheduling server

(b) Spectrum broker is connected to multiple networks

(c) Spectrum broker bridges primary network and xG network

(d) Spectrum broker is a central network entity

This question was addressed to me in quiz.

My doubt stems from The xG Network Architecture topic in section Next Generation Wireless Network of Cognitive Radio

Answer 1

The correct answer is:

(a) Spectrum broker is also known as scheduling server

Explanation:

In the context of Cognitive Radio Networks (CRN) and Next Generation Wireless Networks (xG Networks), a spectrum broker is an essential component responsible for managing spectrum resources and facilitating dynamic spectrum access. Let's analyze the options:

• (a) Spectrum broker is also known as scheduling server: This is false. A spectrum broker is not the same as a scheduling server. While a scheduling server is typically involved in allocating time slots for network traffic, a spectrum broker deals specifically with the allocation and management of spectrum resources, ensuring that secondary users can access unused spectrum without interfering with primary users. The two are distinct functions.

• (b) Spectrum broker is connected to multiple networks: This is true. A spectrum broker manages access to the spectrum for multiple networks (primary and secondary), and it can facilitate communication between different network types.

• (c) Spectrum broker bridges primary network and xG network: This is true. The spectrum broker acts as an intermediary between the primary (licensed) network and secondary (unlicensed) xG (next-generation) networks, enabling secondary users to access spectrum without causing interference to primary users.

• (d) Spectrum broker is a central network entity: This is true. The spectrum broker is typically a central entity that coordinates spectrum access and enforces policies, ensuring efficient spectrum management.

Therefore, the false statement is (a), as a spectrum broker and a scheduling server are not the same thing.