Consider a CDMA system with two users A and B. and their spreading sequences are a-[1,1, 1] and b- [1, 1,-1). respectively. Assume that the path loss factors for user A and user 8 are 1 and 5. respectively. BPSK modulation is employed. User A transmitted a bit d, -1 and user B transmitted a bit de --1. The received signal (distorted by noise) is r--5,-4,5). If successive cancellation is used for decoding which of the following statements is true? Select one Oa After interference cancellation. we can get a signal vector |-6,-5, 4. O Ater interference cancellation we can get a signal vector-[1. 1, 0). Oe Successive cancellation is performed in decoding User B's signal Od None of these choices is true Oe Ater interference cancellation we can get a signal vector (0, 1,0

Consider a CDMA system with two users A and B. and their spreading sequences are a-[1,1, 1] and b- [1, 1,-1). respectively. Assume that the path loss factors for user A and user 8 are 1 and 5. respectively. BPSK modulation is employed. User A transmitted a bit d, -1 and user B transmitted a bit de --1. The received signal (distorted by noise) is r--5,-4,5). If successive cancellation is used for decoding which of the following statements is true? Select one Oa After interference cancellation. we can get a signal vector |-6,-5, 4. O Ater interference cancellation we can get a signal vector-[1. 1, 0). Oe Successive cancellation is performed in decoding User B's signal Od None of these choices is true Oe Ater interference cancellation we can get a signal vector (0, 1,0

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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