Populaarimusiikin aseman muutos kulttuuripolitiikassa : julkinen tuki, koulutus ja koulutustarpeet

English abstract: The change in the status of popular music within cultural policies

Koulutuksen lupaus, vapaus ja ikuinen toivo - sukupuoli, koulutus ja asiantuntijuus aikuisopiskelijanaisen elämäkerrassa

Summary: The promise, freedom and eternal hope of education - gender, training and expertise in the biography of an adult learner

Koulutus on kannattava investointi niin yksilöille kuin aluetaloudellekin

Artikkeli perustuu kirjoittajan väitöstutkimukseen Koulutuksen ja tutkimuksen taloudellinen merkitys : vertaileva tutkimus yliopistollisen koulutuksen ja tutkimuksen taloudellisesta merkityksestä seitsemälle alueelle (Tampereen yliopisto 2004)

Hybrid turbo FEC/ARQ systems and distributed space-time coding for cooperative transmission

Cooperative transmission can be seen as a "virtual" MIMO system, where themultiple transmit antennas are in fact implemented distributed by the antennas both at the source and the relay terminal. Depending on the system design, diversity/multiplexing gainsare achievable. This design involves the definition of the type of retransmission (incrementalredundancy, repetition coding), the design of the distributed space-time codes, the errorcorrecting scheme, the operation of the relay (decode&forward or amplify&forward) and thenumber of antennas at each terminal. Proposed schemes are evaluated in different conditionsin combination with forward error correcting codes (FEC), both for linear and near-optimum(sphere decoder) receivers, for its possible implementation in downlink high speed packetservices of cellular networks. Results show the benefits of coded cooperation over directtransmission in terms of increased throughput. It is shown that multiplexing gains areobserved even if the mobile station features a single antenna, provided that cell wide reuse of the relay radio resource is possible.