By Paulo S. R. Diniz, Wallace A. Martins and Markus V. S. Lima, Morgan & Claypool Publishers, 2012. Description from the publisher: This book presents orthogonal frequency-division multiplexing (OFDM)-inspired systems that are able to, at most, halve the amount of redundancy used by OFDM systems while keeping the computational complexity comparable. These systems -- named memoryless linear time-invariant (LTI) transceivers with reduced redundancy -- can be implemented using low-complexity arithmetical operations and fast algorithms. In addition, the book also shows that, whenever the block transmitter and receiver have memory and/or are linear time-varying (LTV), it is possible to reduce the redundancy in the transmission even further. For the transceivers with memory it is possible to eliminate the redundancy at the cost of making the channel equalization more difficult. Moreover, when time-varying block transceivers are also employed, the amount of redundancy can be as low as a single symbol per block, regardless of the size of the channel memory. With the techniques presented in the book it is possible to address what lies beyond the use of OFDM-related solutions in broadband transmissions. More details can be found at the book website.