The combined use of diversity in the time, frequency, and space domains constitutes a powerful instrument to improve the reception of mobile broadcasting services. The improvement brought by the utilization of diversity techniques can be translated into an extended coverage of mobile services, or into a reduction of the network infrastructure. This dissertation addresses the use of diversity for the provision of mobile services in the European family of terrestrial broadcasting systems standardized by the DVB (Digital Video Broadcasting) consortium. This includes the first and second generation systems DVB-T (Terrestrial), DVB-H (Handheld) and DVB-T2 (Terrestrial 2nd Generation), as well as the next generation system DVB-NGH. Nevertheless, the work carried out in this dissertation is of generic nature and can be applied to future evolutions of standards such as the Japanese ISDB-T or the American ATSC. Our investigations employ an information-theoretic approach to obtain the performance limits of diversity techniques, as well as physical layer simulations to evaluate the performance in real systems. The investigations carried out in the context of DVB-T, DVB-H, and DVB-T2 are aimed at the simultaneous delivery of fixed and mobile services in terrestrial broadcasting networks. The convergence of the fixed and mobile paradigms can facilitate the introduction of mobile TV services by allowing the reuse of spectrum, content and infrastructure. The results show that the incorporation of time interleaving (TI) at the physical layer for time diversity, and single-input multiple-output (SIMO) for space diversity are critical for the performance of mobile broadcasting systems. Upper layer FEC (UL-FEC) techniques can be used to achieve time diversity in first generation systems like DVB-T and DVB-H; however, they require the transmission of additional parity data and are not useful for stationary reception. The analysis in terms of link budget reveals that the combined use of time and space diversity is not sufficient to enable the provision of mobile services with acceptable coverage levels in DVB-T and DVB-T2 networks planned for fixed reception. In contrast, diversity techniques can be used in networks planned for portable indoor reception to increase the capacity of vehicular services and extend the coverage of handheld indoor reception. The utilization of combined diversity in the time, frequency, and space domains has been investigated in the context of DVB-NGH, the first broadcasting system to exploit the diversity in the three domains by incorporating at the physical layer long TI, time-frequency slicing (TFS) and multiple-input multiple-output (MIMO). In addition, the adoption of rotated constellations provides better robustness against fading by means of signal-space diversity (SSD). DVB-NGH features an optional satellite component, and has adopted long TI in order to cope with the signal outages that are characteristic of land mobile satellite (LMS) channels. However, the solution adopted in the standard for long TI is cumbersome due to the poor performance exhibited by LDPC codes in the presence of heavy puncturing (erasures). In this context, we show that a split FEC approach at the physical layer can provide a good compromise in terms of time diversity (robustness) and zapping time. TFS achieves better frequency diversity by grouping multiple RF channels in the same multiplex, so that the frequency interleaving can be performed across hundreds of MHz in the UHF band. According to the results presented in this dissertation, the utilization of TFS can achieve very significant gains depending on the maximum separation between RF channels. The incorporation of MIMO in mobile broadcasting systems is key to overcome the Shannon limit of single antenna communications. In this regard, we focus on two important aspects when evaluating the performance of MIMO techniques in DVB-NGH: the transmission of pilots for channel estimation purposes, and the use of powerful FEC codes. Our investigations reveal that very simple techniques can outperform more complex codes with a priori better properties if the capacity loss due to the transmission of pilot information and the error-correcting capabilities of the FEC code are taken into account. Broadly speaking, the additional diversity introduced by rotated constellations improves the performance of bit-interleaved coded modulation (BICM) for higher code rates, whereas for low code rates, it is preferable to rely on the error-correction capabilities of the FEC code. In this dissertation we show that the combination of rotated constellations with long TI and TFS is very interesting for mobile broadcasting systems. In particular, rotated constellations are important to increase the diversity gains in the time and frequency domains as well as to reduce the zapping time.