Spectral Shape Division Multiplexing (SSDM): Apparatus, Transmitter, Receiver and Detection

<p>Wireless communication companies require to use the frequency spectrum to operate. Both frequency licenses and infrastructure to reuse frequencies are costly resources subject to increasing demand. This work introduces a novel multiplexing method that saves spectrum called Spectral Shape Division Multiplexing (SSDM). Under certain configurations, SSDM displays higher flexibility and throughput than other spectrally efficient methods.</p> <p>SSDM defines the structure of a wireless multi-carrier by software. It is similar to Orthogonal Frequency Division Multiplexing (OFDM) in that both use overlapped sub-carriers to make efficient use of allocated spectrum. However, SSDM has several advantages. Where OFDM organizes sub-carriers orthogonally, SSDM allows arbitrary frequency steps enabling higher spectral efficiency. Similarly, while OFDM and other spectrally efficient methods use sinusoidal pulse forms, SSDM can use non-standard pulses providing a greater control of the carrier. In this thesis, a SSDM transceiver is implemented to reduce the spectrum utilization. SSDM presents an increase in spectral efficiency of 20% average with respect to OFDM. The cost of this gain is higher computational speed and signal to noise ratio.</p> <p>The mathematical models and possible architecture for an SSDM system with sinusoidal pulses is developed. The modem is compared with other spectrally efficient methods. Similarly, the trade-offs between spectral efficiency, bit-error rates, dimension of the carrier and sub-carrier spacing are subject of analysis.</p>

Name thesis:degree_name

MS in Electrical Engineering

Discipline thesis:degree_discipline

Electrical Engineering

Year dc:date.available

2012

Author dc:creator

• Holguín-Sánchez, Fausto Daniel

Contributors dc:contributor

• John Y. Oliver

• shared spectrum multiplexing SSM
• pulse shape division multiplexing PSDM
• non orthogonal frequency division multiplexing NOFDM
• spectrally efficient frequency division multiplexing SEFDM
• overlapped frequency division multiplexing OvFDM
• signal superposition transceiver.
• Signal Processing
• Systems and Communications

Identifier

10.15368/theses.2012.117

OAI identifier oai:identifier

oai:digitalcommons.calpoly.edu:theses-1839