1. Orthogonal Frequency Division Multiple Access (OFDMA) in The UMTS Long Term Evolution, 2nd ed., Ed. Stefania Sesia, Issam Toufik, and Matthew Baker, John Wiley & Sons, 2011.
2. Uplink Physical Layer Design in The UMTS Long Term Evolution, 2nd ed., Ed. Stefania Sesia, Issam Toufik, and Matthew Baker, John Wiley & Sons, 2011.
3. Downlink Physical Data and Control Channels in The UMTS Long Term Evolution, 2nd ed., Ed. Stefania Sesia, Issam Toufik, and Matthew Baker, John Wiley & Sons, 2011.
4. Reference Signals and Channel Estimation in The UMTS Long Term Evolution, 2nd ed., Ed. Stefania Sesia, Issam Toufik, and Matthew Baker, John Wiley & Sons, 2011.
5. http://blog.3g4g.co.uk/search/label/Carrier%20Aggregation.