Module overview
This module introduces both the wireless and optical propagation environments, the modelling of the corresponding channels as well as their implications on the design and architecture of wireless and optical communications systems. The basic principles of digital transmission in both wireless and optical communications are considered, including the techniques of enhancing the reliability of wireless and optical systems. The principles of spread-spectrum communications and that of spread-spectrum based code-division multiple-access (CDMA) are explored. Furthermore, the fundamentals of broadband multicarrer communications and orthogonal frequency-division multiplexing (OFDM) as well as their implementation challenges are introduced.
Linked modules
Prerequisites: ELEC2220.
Aims and Objectives
Learning Outcomes
Knowledge and Understanding
Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:
- Understand the principles of multiple-access and multiplexing communications
- Understand the interactions of the various system components and the propagation environment
- Appreciate the design trade-offs of communications systems
- Understand the principles of broadband multicarrier and OFDM communications
- Understand the principles of spread-spectrum communications, interference suppression, and spread-spectrum based multiple-access
Subject Specific Practical Skills
Having successfully completed this module you will be able to:
- Parametrise and design space-time coding schemes
- Design wireless and optical communications systems, including digital modulation/demodulation and diversity communications
- Design of spread-spectrum schemes and their based multiple-access systems
- Model material and fibre dispersion
- Parametrise and design multicarrier and OFDM schemes
Syllabus
Wireless Communications
- Radio propagation issues: pathloss, slow-fading, fast-fading, dispersion, wideband channels, powerbudget, etc.
- Cellular principles and multiple access techniques, such as FDMA, TDMA, CDMA, SDMA, OFDMA, etc.
- Modulation schemes, detection techniques and error rate calculations
- Coherent and non-coherent communications
- Space-time processing principles and diversity techniques
- Direct-sequence code division multiple-access
- Frequency-hopping code division multiple-access
- Hybrid spread-spectrum code division multiple-access
- Broadband multicarrier and orthogonal frequency division multiplexing (OFDM) communications.
Optical Communications
- WDM systems
- Dispersion (material and waveguide) but not based on derivations of modes
- Effects of dispersion on choices of fibre - DSF, DCF and NZ-DSF
- Multimode fibres and capacity
- Nonlinear limits on power transmission
- Electronics dispersion compensation
- Advanced coding formats applied to optical comms
- Error budget and simple comparison to back-to-back BER / power
Learning and Teaching
Teaching and learning methods
.
| Type | Hours |
|---|---|
| Preparation for scheduled sessions | 18 |
| Wider reading or practice | 59.5 |
| Follow-up work | 18 |
| Lecture | 36 |
| Completion of assessment task | 8.5 |
| Revision | 10 |
| Total study time | 150 |
Resources & Reading list
Textbooks
T. S. Rappaport (2002). Wireless Communications: Principles and Practice. Prentics Hall PTR.
L. Hanzo, J. Blogh, S (2008). 3G, HSPA and FDD versus TDD Networking. John Wiley.
L. Hanzo, S-X. Ng, W.T. Webb, T. Keller (Sept. 2004). Quadrature Amplitude Modulation: From Basics to Adaptive Trellis-Coded, Turbo-Equalised and Space-Time Coded OFDM, CDMA and MC-CDMA Systems. IEEE Press-John Wiley.
L. Hanzo, L-L. Yang, E-L. Kuan and K. Yen (2003). Single- and Multi-Carrier CDMA: Multi-User Detection, Space-Time Spreading, Synchronisation andStandards. IEEE Press - John Wiley.
L. Hanzo, T.H. Liew, B.L. Yeap, R. Tee, SX Ng (2011). Turbo Coding, Turbo Equalisation and Space-Time Coding. John Wiley.
L. Hanzo, C.H. Wong, M.S. Yee (2002). Adaptive wirelesstransceivers: Turbo-Coded, Turbo-Equalised and Space-Time Coded TDMA, CDMA andOFDM systems. John Wiley.
L.-L. Yang. Multicarrier Communications. John Wiley.
Ghatak and Thyagarajan. Introduction to Fiber Optics. Foundation Books.
R. Steele, L. Hanzo (Ed (1999). Mobile Radio Communications: Second and Third Generation Cellular and WATM Systems. John Wiley-IEEE Press.
L. Hanzo, M. Muenster, B.J. Choi and T. Keller (2003). OFDM and MC-CDMA for Broadband Multi-user Communications, WLANs and Broadcasting. John Wiley - IEEE Press.
L. Hanzo, P. Cherriman, J. Streit (2007). Video Compressions and Communications. John Wiley.
Assessment
Summative
This is how we’ll formally assess what you have learned in this module.
| Method | Percentage contribution |
|---|---|
| Continuous Assessment | 15% |
| Final Assessment | 85% |
Referral
This is how we’ll assess you if you don’t meet the criteria to pass this module.
| Method | Percentage contribution |
|---|---|
| Written exam | 100% |
Repeat
An internal repeat is where you take all of your modules again, including any you passed. An external repeat is where you only re-take the modules you failed.
| Method | Percentage contribution |
|---|---|
| Written exam | 100% |
Repeat Information
Repeat type: Internal & External